diff --git a/doc/contributions.txt b/doc/contributions.txt
index 1ac5a0f05fc4780552d64d9d740046aaf98e825e..4b3672ed485c70d77f37b562a15d371e63c83fe2 100755
--- a/doc/contributions.txt
+++ b/doc/contributions.txt
@@ -1391,6 +1391,7 @@ Sovereign Engineer
 	SL-18249
     SL-18394
     SL-18412
+    SL-18497
 SpacedOut Frye
 	VWR-34
 	VWR-45
diff --git a/indra/llcharacter/llkeyframemotion.cpp b/indra/llcharacter/llkeyframemotion.cpp
index ebf7454a6154cd148b8d5a0e6de1cd8ab196bb6f..403d5bcf490b7611cf57379d9dadf2f91841270a 100644
--- a/indra/llcharacter/llkeyframemotion.cpp
+++ b/indra/llcharacter/llkeyframemotion.cpp
@@ -1229,7 +1229,7 @@ void LLKeyframeMotion::applyConstraint(JointConstraint* constraint, F32 time, U8
 BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, bool allow_invalid_joints)
 {
 	BOOL old_version = FALSE;
-	mJointMotionList = new LLKeyframeMotion::JointMotionList;
+	std::unique_ptr<LLKeyframeMotion::JointMotionList> joint_motion_list(new LLKeyframeMotion::JointMotionList);
 
 	//-------------------------------------------------------------------------
 	// get base priority
@@ -1272,16 +1272,16 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
                    << " for animation " << asset_id << LL_ENDL;
 		return FALSE;
 	}
-	mJointMotionList->mBasePriority = (LLJoint::JointPriority) temp_priority;
+	joint_motion_list->mBasePriority = (LLJoint::JointPriority) temp_priority;
 
-	if (mJointMotionList->mBasePriority >= LLJoint::ADDITIVE_PRIORITY)
+	if (joint_motion_list->mBasePriority >= LLJoint::ADDITIVE_PRIORITY)
 	{
-		mJointMotionList->mBasePriority = (LLJoint::JointPriority)((S32)LLJoint::ADDITIVE_PRIORITY-1);
-		mJointMotionList->mMaxPriority = mJointMotionList->mBasePriority;
+		joint_motion_list->mBasePriority = (LLJoint::JointPriority)((S32)LLJoint::ADDITIVE_PRIORITY-1);
+		joint_motion_list->mMaxPriority = joint_motion_list->mBasePriority;
 	}
-	else if (mJointMotionList->mBasePriority < LLJoint::USE_MOTION_PRIORITY)
+	else if (joint_motion_list->mBasePriority < LLJoint::USE_MOTION_PRIORITY)
 	{
-		LL_WARNS() << "bad animation base_priority " << mJointMotionList->mBasePriority
+		LL_WARNS() << "bad animation base_priority " << joint_motion_list->mBasePriority
                    << " for animation " << asset_id << LL_ENDL;
 		return FALSE;
 	}
@@ -1289,15 +1289,15 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 	//-------------------------------------------------------------------------
 	// get duration
 	//-------------------------------------------------------------------------
-	if (!dp.unpackF32(mJointMotionList->mDuration, "duration"))
+	if (!dp.unpackF32(joint_motion_list->mDuration, "duration"))
 	{
 		LL_WARNS() << "can't read duration"
                    << " for animation " << asset_id << LL_ENDL;
 		return FALSE;
 	}
 	
-	if (mJointMotionList->mDuration > MAX_ANIM_DURATION ||
-	    !llfinite(mJointMotionList->mDuration))
+	if (joint_motion_list->mDuration > MAX_ANIM_DURATION ||
+	    !llfinite(joint_motion_list->mDuration))
 	{
 		LL_WARNS() << "invalid animation duration"
                    << " for animation " << asset_id << LL_ENDL;
@@ -1307,14 +1307,14 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 	//-------------------------------------------------------------------------
 	// get emote (optional)
 	//-------------------------------------------------------------------------
-	if (!dp.unpackString(mJointMotionList->mEmoteName, "emote_name"))
+	if (!dp.unpackString(joint_motion_list->mEmoteName, "emote_name"))
 	{
 		LL_WARNS() << "can't read optional_emote_animation"
                    << " for animation " << asset_id << LL_ENDL;
 		return FALSE;
 	}
 
-	if(mJointMotionList->mEmoteName==mID.asString())
+	if(joint_motion_list->mEmoteName==mID.asString())
 	{
 		LL_WARNS() << "Malformed animation mEmoteName==mID"
                    << " for animation " << asset_id << LL_ENDL;
@@ -1324,23 +1324,23 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 	//-------------------------------------------------------------------------
 	// get loop
 	//-------------------------------------------------------------------------
-	if (!dp.unpackF32(mJointMotionList->mLoopInPoint, "loop_in_point") ||
-	    !llfinite(mJointMotionList->mLoopInPoint))
+	if (!dp.unpackF32(joint_motion_list->mLoopInPoint, "loop_in_point") ||
+	    !llfinite(joint_motion_list->mLoopInPoint))
 	{
 		LL_WARNS() << "can't read loop point"
                    << " for animation " << asset_id << LL_ENDL;
 		return FALSE;
 	}
 
-	if (!dp.unpackF32(mJointMotionList->mLoopOutPoint, "loop_out_point") ||
-	    !llfinite(mJointMotionList->mLoopOutPoint))
+	if (!dp.unpackF32(joint_motion_list->mLoopOutPoint, "loop_out_point") ||
+	    !llfinite(joint_motion_list->mLoopOutPoint))
 	{
 		LL_WARNS() << "can't read loop point"
                    << " for animation " << asset_id << LL_ENDL;
 		return FALSE;
 	}
 
-	if (!dp.unpackS32(mJointMotionList->mLoop, "loop"))
+	if (!dp.unpackS32(joint_motion_list->mLoop, "loop"))
 	{
 		LL_WARNS() << "can't read loop"
                    << " for animation " << asset_id << LL_ENDL;
@@ -1353,22 +1353,22 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 	if (female_land_anim == asset_id || formal_female_land_anim == asset_id)
 	{
 		LL_WARNS() << "Animation(" << asset_id << ") won't be looped." << LL_ENDL;
-		mJointMotionList->mLoop = FALSE;
+		joint_motion_list->mLoop = FALSE;
 	}
 
 	//-------------------------------------------------------------------------
 	// get easeIn and easeOut
 	//-------------------------------------------------------------------------
-	if (!dp.unpackF32(mJointMotionList->mEaseInDuration, "ease_in_duration") ||
-	    !llfinite(mJointMotionList->mEaseInDuration))
+	if (!dp.unpackF32(joint_motion_list->mEaseInDuration, "ease_in_duration") ||
+	    !llfinite(joint_motion_list->mEaseInDuration))
 	{
 		LL_WARNS() << "can't read easeIn"
                    << " for animation " << asset_id << LL_ENDL;
 		return FALSE;
 	}
 
-	if (!dp.unpackF32(mJointMotionList->mEaseOutDuration, "ease_out_duration") ||
-	    !llfinite(mJointMotionList->mEaseOutDuration))
+	if (!dp.unpackF32(joint_motion_list->mEaseOutDuration, "ease_out_duration") ||
+	    !llfinite(joint_motion_list->mEaseOutDuration))
 	{
 		LL_WARNS() << "can't read easeOut"
                    << " for animation " << asset_id << LL_ENDL;
@@ -1393,7 +1393,7 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 		return FALSE;
 	}
 	
-	mJointMotionList->mHandPose = (LLHandMotion::eHandPose)word;
+	joint_motion_list->mHandPose = (LLHandMotion::eHandPose)word;
 
 	//-------------------------------------------------------------------------
 	// get number of joint motions
@@ -1419,8 +1419,8 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 		return FALSE;
 	}
 
-	mJointMotionList->mJointMotionArray.clear();
-	mJointMotionList->mJointMotionArray.reserve(num_motions);
+	joint_motion_list->mJointMotionArray.clear();
+	joint_motion_list->mJointMotionArray.reserve(num_motions);
 	mJointStates.clear();
 	mJointStates.reserve(num_motions);
 
@@ -1431,7 +1431,7 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 	for(U32 i=0; i<num_motions; ++i)
 	{
 		JointMotion* joint_motion = new JointMotion;		
-		mJointMotionList->mJointMotionArray.push_back(joint_motion);
+		joint_motion_list->mJointMotionArray.push_back(joint_motion);
 		
 		std::string joint_name;
 		if (!dp.unpackString(joint_name, "joint_name"))
@@ -1503,9 +1503,9 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 		
 		joint_motion->mPriority = (LLJoint::JointPriority)joint_priority;
 		if (joint_priority != LLJoint::USE_MOTION_PRIORITY &&
-		    joint_priority > mJointMotionList->mMaxPriority)
+		    joint_priority > joint_motion_list->mMaxPriority)
 		{
-			mJointMotionList->mMaxPriority = (LLJoint::JointPriority)joint_priority;
+			joint_motion_list->mMaxPriority = (LLJoint::JointPriority)joint_priority;
 		}
 
 		joint_state->setPriority((LLJoint::JointPriority)joint_priority);
@@ -1556,9 +1556,9 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 					return FALSE;
 				}
 
-				time = U16_to_F32(time_short, 0.f, mJointMotionList->mDuration);
+				time = U16_to_F32(time_short, 0.f, joint_motion_list->mDuration);
 				
-				if (time < 0 || time > mJointMotionList->mDuration)
+				if (time < 0 || time > joint_motion_list->mDuration)
 				{
 					LL_WARNS() << "invalid frame time"
                                << " for animation " << asset_id << LL_ENDL;
@@ -1571,38 +1571,57 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			LLVector3 rot_angles;
 			U16 x, y, z;
 
-			BOOL success = TRUE;
-
 			if (old_version)
 			{
-				success = dp.unpackVector3(rot_angles, "rot_angles") && rot_angles.isFinite();
+				if (!dp.unpackVector3(rot_angles, "rot_angles"))
+				{
+					LL_WARNS() << "can't read rot_angles in rotation key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
+				if (!rot_angles.isFinite())
+				{
+					LL_WARNS() << "non-finite angle in rotation key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
 
 				LLQuaternion::Order ro = StringToOrder("ZYX");
 				rot_key.mRotation = mayaQ(rot_angles.mV[VX], rot_angles.mV[VY], rot_angles.mV[VZ], ro);
 			}
 			else
 			{
-				success &= dp.unpackU16(x, "rot_angle_x");
-				success &= dp.unpackU16(y, "rot_angle_y");
-				success &= dp.unpackU16(z, "rot_angle_z");
+				if (!dp.unpackU16(x, "rot_angle_x"))
+				{
+					LL_WARNS() << "can't read rot_angle_x in rotation key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
+				if (!dp.unpackU16(y, "rot_angle_y"))
+				{
+					LL_WARNS() << "can't read rot_angle_y in rotation key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
+				if (!dp.unpackU16(z, "rot_angle_z"))
+				{
+					LL_WARNS() << "can't read rot_angle_z in rotation key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
 
 				LLVector3 rot_vec;
 				rot_vec.mV[VX] = U16_to_F32(x, -1.f, 1.f);
 				rot_vec.mV[VY] = U16_to_F32(y, -1.f, 1.f);
 				rot_vec.mV[VZ] = U16_to_F32(z, -1.f, 1.f);
+
+				if(!rot_vec.isFinite())
+				{
+					LL_WARNS() << "non-finite angle in rotation key (" << k << ")"
+						<< " for animation " << asset_id << LL_ENDL;
+					return FALSE;
+				}				
 				rot_key.mRotation.unpackFromVector3(rot_vec);
 			}
 
-			if( !(rot_key.mRotation.isFinite()) )
-			{
-				LL_WARNS() << "non-finite angle in rotation key"
-                           << " for animation " << asset_id << LL_ENDL;
-				success = FALSE;
-			}
-			
-			if (!success)
+			if(!rot_key.mRotation.isFinite())
 			{
-				LL_WARNS() << "can't read rotation key (" << k << ")"
+				LL_WARNS() << "non-finite angle in rotation key (" << k << ")"
                            << " for animation " << asset_id << LL_ENDL;
 				return FALSE;
 			}
@@ -1655,14 +1674,16 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 					return FALSE;
 				}
 
-				pos_key.mTime = U16_to_F32(time_short, 0.f, mJointMotionList->mDuration);
+				pos_key.mTime = U16_to_F32(time_short, 0.f, joint_motion_list->mDuration);
 			}
 
-			BOOL success = TRUE;
-
 			if (old_version)
 			{
-				success = dp.unpackVector3(pos_key.mPosition, "pos");
+				if (!dp.unpackVector3(pos_key.mPosition, "pos"))
+				{
+					LL_WARNS() << "can't read pos in position key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
                 
                 //MAINT-6162
                 pos_key.mPosition.mV[VX] = llclamp( pos_key.mPosition.mV[VX], -LL_MAX_PELVIS_OFFSET, LL_MAX_PELVIS_OFFSET);
@@ -1674,25 +1695,30 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				U16 x, y, z;
 
-				success &= dp.unpackU16(x, "pos_x");
-				success &= dp.unpackU16(y, "pos_y");
-				success &= dp.unpackU16(z, "pos_z");
+				if (!dp.unpackU16(x, "pos_x"))
+				{
+					LL_WARNS() << "can't read pos_x in position key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
+				if (!dp.unpackU16(y, "pos_y"))
+				{
+					LL_WARNS() << "can't read pos_y in position key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
+				if (!dp.unpackU16(z, "pos_z"))
+				{
+					LL_WARNS() << "can't read pos_z in position key (" << k << ")" << LL_ENDL;
+					return FALSE;
+				}
 
 				pos_key.mPosition.mV[VX] = U16_to_F32(x, -LL_MAX_PELVIS_OFFSET, LL_MAX_PELVIS_OFFSET);
 				pos_key.mPosition.mV[VY] = U16_to_F32(y, -LL_MAX_PELVIS_OFFSET, LL_MAX_PELVIS_OFFSET);
 				pos_key.mPosition.mV[VZ] = U16_to_F32(z, -LL_MAX_PELVIS_OFFSET, LL_MAX_PELVIS_OFFSET);
 			}
 			
-			if( !(pos_key.mPosition.isFinite()) )
+			if(!pos_key.mPosition.isFinite())
 			{
 				LL_WARNS() << "non-finite position in key"
-                           << " for animation " << asset_id << LL_ENDL;
-				success = FALSE;
-			}
-			
-			if (!success)
-			{
-				LL_WARNS() << "can't read position key (" << k << ")"
                            << " for animation " << asset_id << LL_ENDL;
 				return FALSE;
 			}
@@ -1701,7 +1727,7 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 
 			if (is_pelvis)
 			{
-				mJointMotionList->mPelvisBBox.addPoint(pos_key.mPosition);
+				joint_motion_list->mPelvisBBox.addPoint(pos_key.mPosition);
 			}
 		}
 
@@ -1733,23 +1759,21 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 		for(S32 i = 0; i < num_constraints; ++i)
 		{
 			// read in constraint data
-			JointConstraintSharedData* constraintp = new JointConstraintSharedData;
+			std::unique_ptr<JointConstraintSharedData> constraintp(new JointConstraintSharedData);
 			U8 byte = 0;
 
 			if (!dp.unpackU8(byte, "chain_length"))
 			{
 				LL_WARNS() << "can't read constraint chain length"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 			constraintp->mChainLength = (S32) byte;
 
-			if((U32)constraintp->mChainLength > mJointMotionList->getNumJointMotions())
+			if((U32)constraintp->mChainLength > joint_motion_list->getNumJointMotions())
 			{
 				LL_WARNS() << "invalid constraint chain length"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1757,7 +1781,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read constraint type"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 			
@@ -1765,7 +1788,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "invalid constraint type"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 			constraintp->mConstraintType = (EConstraintType)byte;
@@ -1776,7 +1798,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read source volume name"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1787,7 +1808,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "not a valid source constraint volume " << str
 						   << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1795,7 +1815,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read constraint source offset"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 			
@@ -1803,7 +1822,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "non-finite constraint source offset"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 			
@@ -1811,7 +1829,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read target volume name"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1830,7 +1847,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 				{
 					LL_WARNS() << "not a valid target constraint volume " << str
 							   << " for animation " << asset_id << LL_ENDL;
-					delete constraintp;
 					return FALSE;
 				}
 			}
@@ -1839,7 +1855,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read constraint target offset"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1847,7 +1862,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "non-finite constraint target offset"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 			
@@ -1855,7 +1869,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read constraint target direction"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1863,7 +1876,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "non-finite constraint target direction"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1877,7 +1889,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read constraint ease in start time"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1885,7 +1896,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read constraint ease in stop time"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1893,7 +1903,6 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read constraint ease out start time"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
@@ -1901,33 +1910,31 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 			{
 				LL_WARNS() << "can't read constraint ease out stop time"
                            << " for animation " << asset_id << LL_ENDL;
-				delete constraintp;
 				return FALSE;
 			}
 
-			mJointMotionList->mConstraints.push_front(constraintp);
-
-			constraintp->mJointStateIndices = new S32[constraintp->mChainLength + 1]; // note: mChainLength is size-limited - comes from a byte
-			
 			LLJoint* joint = mCharacter->findCollisionVolume(constraintp->mSourceConstraintVolume);
 			// get joint to which this collision volume is attached
 			if (!joint)
 			{
 				return FALSE;
 			}
+
+			constraintp->mJointStateIndices = new S32[constraintp->mChainLength + 1]; // note: mChainLength is size-limited - comes from a byte
+
 			for (S32 i = 0; i < constraintp->mChainLength + 1; i++)
 			{
 				LLJoint* parent = joint->getParent();
 				if (!parent)
 				{
 					LL_WARNS() << "Joint with no parent: " << joint->getName()
-                               << " Emote: " << mJointMotionList->mEmoteName
+                               << " Emote: " << joint_motion_list->mEmoteName
                                << " for animation " << asset_id << LL_ENDL;
 					return FALSE;
 				}
 				joint = parent;
 				constraintp->mJointStateIndices[i] = -1;
-				for (U32 j = 0; j < mJointMotionList->getNumJointMotions(); j++)
+				for (U32 j = 0; j < joint_motion_list->getNumJointMotions(); j++)
 				{
 					LLJoint* constraint_joint = getJoint(j);
 					
@@ -1948,14 +1955,16 @@ BOOL LLKeyframeMotion::deserialize(LLDataPacker& dp, const LLUUID& asset_id, boo
 				{
 					LL_WARNS() << "No joint index for constraint " << i
                                << " for animation " << asset_id << LL_ENDL;
-					delete constraintp;
 					return FALSE;
 				}
 			}
+
+			joint_motion_list->mConstraints.push_front(constraintp.release());
 		}
 	}
 
 	// *FIX: support cleanup of old keyframe data
+    mJointMotionList = joint_motion_list.release(); // release from unique_ptr to member;
 	LLKeyframeDataCache::addKeyframeData(getID(),  mJointMotionList);
 	mAssetStatus = ASSET_LOADED;
 
diff --git a/indra/llmessage/lldatapacker.cpp b/indra/llmessage/lldatapacker.cpp
index b6adc102d2149d788a25e57f47a1c03025a359b9..9f7768f78ec6f13c7f4fdc75b389ac11f72f9ed8 100644
--- a/indra/llmessage/lldatapacker.cpp
+++ b/indra/llmessage/lldatapacker.cpp
@@ -116,9 +116,8 @@ BOOL LLDataPacker::packFixed(const F32 value, const char *name,
 BOOL LLDataPacker::unpackFixed(F32 &value, const char *name,
 							   const BOOL is_signed, const U32 int_bits, const U32 frac_bits)
 {
-	//BOOL success = TRUE;
+	BOOL success = TRUE;
 	//LL_INFOS() << "unpackFixed:" << name << " int:" << int_bits << " frac:" << frac_bits << LL_ENDL;
-	BOOL ok = FALSE;
 	S32 unsigned_bits = int_bits + frac_bits;
 	S32 total_bits = unsigned_bits;
 
@@ -134,19 +133,19 @@ BOOL LLDataPacker::unpackFixed(F32 &value, const char *name,
 	if (total_bits <= 8)
 	{
 		U8 fixed_8;
-		ok = unpackU8(fixed_8, name);
+		success = unpackU8(fixed_8, name);
 		fixed_val = (F32)fixed_8;
 	}
 	else if (total_bits <= 16)
 	{
 		U16 fixed_16;
-		ok = unpackU16(fixed_16, name);
+		success = unpackU16(fixed_16, name);
 		fixed_val = (F32)fixed_16;
 	}
 	else if (total_bits <= 31)
 	{
 		U32 fixed_32;
-		ok = unpackU32(fixed_32, name);
+		success = unpackU32(fixed_32, name);
 		fixed_val = (F32)fixed_32;
 	}
 	else
@@ -164,7 +163,7 @@ BOOL LLDataPacker::unpackFixed(F32 &value, const char *name,
 	}
 	value = fixed_val;
 	//LL_INFOS() << "Value: " << value << LL_ENDL;
-	return ok;
+	return success;
 }
 
 BOOL LLDataPacker::unpackU16s(U16 *values, S32 count, const char *name)
@@ -238,37 +237,43 @@ BOOL LLDataPacker::unpackUUIDs(LLUUID *values, S32 count, const char *name)
 
 BOOL LLDataPackerBinaryBuffer::packString(const std::string& value, const char *name)
 {
-	BOOL success = TRUE;
 	S32 length = value.length()+1;
 
-	success &= verifyLength(length, name);
+	if (!verifyLength(length, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{
 		htolememcpy(mCurBufferp, value.c_str(), MVT_VARIABLE, length);  
 	}
 	mCurBufferp += length;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackString(std::string& value, const char *name)
 {
-	BOOL success = TRUE;
 	S32 length = (S32)strlen((char *)mCurBufferp) + 1; /*Flawfinder: ignore*/
 
-	success &= verifyLength(length, name);
+	if (!verifyLength(length, name))
+	{
+		return FALSE;
+	}
 
 	value = std::string((char*)mCurBufferp); // We already assume NULL termination calling strlen()
 	
 	mCurBufferp += length;
-	return success;
+	return TRUE;
 }
 
 BOOL LLDataPackerBinaryBuffer::packBinaryData(const U8 *value, S32 size, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(size + 4, name);
+	if (!verifyLength(size + 4, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
@@ -280,102 +285,117 @@ BOOL LLDataPackerBinaryBuffer::packBinaryData(const U8 *value, S32 size, const c
 		htolememcpy(mCurBufferp, value, MVT_VARIABLE, size);  
 	}
 	mCurBufferp += size;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackBinaryData(U8 *value, S32 &size, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(4, name);
-	htolememcpy(&size, mCurBufferp, MVT_S32, 4);
-	mCurBufferp += 4;
-	success &= verifyLength(size, name);
-	if (success)
+	if (!verifyLength(4, name))
 	{
-		htolememcpy(value, mCurBufferp, MVT_VARIABLE, size);
-		mCurBufferp += size;
+		LL_WARNS() << "LLDataPackerBinaryBuffer::unpackBinaryData would unpack invalid data, aborting!" << LL_ENDL;
+		return FALSE;
 	}
-	else
+
+	htolememcpy(&size, mCurBufferp, MVT_S32, 4);
+	mCurBufferp += 4;
+
+	if (!verifyLength(size, name))
 	{
 		LL_WARNS() << "LLDataPackerBinaryBuffer::unpackBinaryData would unpack invalid data, aborting!" << LL_ENDL;
-		success = FALSE;
+		return FALSE;
 	}
-	return success;
+
+	htolememcpy(value, mCurBufferp, MVT_VARIABLE, size);
+	mCurBufferp += size;
+
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::packBinaryDataFixed(const U8 *value, S32 size, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(size, name);
+	if (!verifyLength(size, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, value, MVT_VARIABLE, size);  
 	}
 	mCurBufferp += size;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackBinaryDataFixed(U8 *value, S32 size, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(size, name);
+	if (!verifyLength(size, name))
+	{
+		return FALSE;
+	}
 	htolememcpy(value, mCurBufferp, MVT_VARIABLE, size);
 	mCurBufferp += size;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::packU8(const U8 value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(U8), name);
+	if (!verifyLength(sizeof(U8), name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{
 		*mCurBufferp = value;
 	}
 	mCurBufferp++;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackU8(U8 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(U8), name);
+	if (!verifyLength(sizeof(U8), name))
+	{
+		return FALSE;
+	}
 
 	value = *mCurBufferp;
 	mCurBufferp++;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::packU16(const U16 value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(U16), name);
+	if (!verifyLength(sizeof(U16), name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, &value, MVT_U16, 2);  
 	}
 	mCurBufferp += 2;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackU16(U16 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(U16), name);
+	if (!verifyLength(sizeof(U16), name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(&value, mCurBufferp, MVT_U16, 2);
 	mCurBufferp += 2;
-	return success;
+	return TRUE;
 }
 
 BOOL LLDataPackerBinaryBuffer::packS16(const S16 value, const char *name)
@@ -404,134 +424,156 @@ BOOL LLDataPackerBinaryBuffer::unpackS16(S16 &value, const char *name)
 
 BOOL LLDataPackerBinaryBuffer::packU32(const U32 value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(U32), name);
+	if (!verifyLength(sizeof(U32), name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, &value, MVT_U32, 4);  
 	}
 	mCurBufferp += 4;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackU32(U32 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(U32), name);
+	if (!verifyLength(sizeof(U32), name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(&value, mCurBufferp, MVT_U32, 4);
 	mCurBufferp += 4;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::packS32(const S32 value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(S32), name);
+	if (!verifyLength(sizeof(S32), name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, &value, MVT_S32, 4); 
 	}
 	mCurBufferp += 4;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackS32(S32 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(S32), name);
+	if(!verifyLength(sizeof(S32), name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(&value, mCurBufferp, MVT_S32, 4);
 	mCurBufferp += 4;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::packF32(const F32 value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(F32), name);
+	if (!verifyLength(sizeof(F32), name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, &value, MVT_F32, 4); 
 	}
 	mCurBufferp += 4;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackF32(F32 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(sizeof(F32), name);
+	if (!verifyLength(sizeof(F32), name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(&value, mCurBufferp, MVT_F32, 4);
 	mCurBufferp += 4;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::packColor4(const LLColor4 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(16, name);
+	if (!verifyLength(16, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, value.mV, MVT_LLVector4, 16); 
 	}
 	mCurBufferp += 16;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackColor4(LLColor4 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(16, name);
+	if (!verifyLength(16, name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(value.mV, mCurBufferp, MVT_LLVector4, 16);
 	mCurBufferp += 16;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::packColor4U(const LLColor4U &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(4, name);
+	if (!verifyLength(4, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, value.mV, MVT_VARIABLE, 4);  
 	}
 	mCurBufferp += 4;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackColor4U(LLColor4U &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(4, name);
+	if (!verifyLength(4, name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(value.mV, mCurBufferp, MVT_VARIABLE, 4);
 	mCurBufferp += 4;
-	return success;
+	return TRUE;
 }
 
 
 
 BOOL LLDataPackerBinaryBuffer::packVector2(const LLVector2 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(8, name);
+	if (!verifyLength(8, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
@@ -539,92 +581,106 @@ BOOL LLDataPackerBinaryBuffer::packVector2(const LLVector2 &value, const char *n
 		htolememcpy(mCurBufferp+4, &value.mV[1], MVT_F32, 4);  
 	}
 	mCurBufferp += 8;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackVector2(LLVector2 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(8, name);
+	if (!verifyLength(8, name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(&value.mV[0], mCurBufferp, MVT_F32, 4);
 	htolememcpy(&value.mV[1], mCurBufferp+4, MVT_F32, 4);
 	mCurBufferp += 8;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::packVector3(const LLVector3 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(12, name);
+	if (!verifyLength(12, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, value.mV, MVT_LLVector3, 12);  
 	}
 	mCurBufferp += 12;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackVector3(LLVector3 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(12, name);
+	if (!verifyLength(12, name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(value.mV, mCurBufferp, MVT_LLVector3, 12);
 	mCurBufferp += 12;
-	return success;
+	return TRUE;
 }
 
 BOOL LLDataPackerBinaryBuffer::packVector4(const LLVector4 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(16, name);
+	if (!verifyLength(16, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, value.mV, MVT_LLVector4, 16);  
 	}
 	mCurBufferp += 16;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackVector4(LLVector4 &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(16, name);
+	if (!verifyLength(16, name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(value.mV, mCurBufferp, MVT_LLVector4, 16);
 	mCurBufferp += 16;
-	return success;
+	return TRUE;
 }
 
 BOOL LLDataPackerBinaryBuffer::packUUID(const LLUUID &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(16, name);
+	if (!verifyLength(16, name))
+	{
+		return FALSE;
+	}
 
 	if (mWriteEnabled) 
 	{ 
 		htolememcpy(mCurBufferp, value.mData, MVT_LLUUID, 16);  
 	}
 	mCurBufferp += 16;
-	return success;
+	return TRUE;
 }
 
 
 BOOL LLDataPackerBinaryBuffer::unpackUUID(LLUUID &value, const char *name)
 {
-	BOOL success = TRUE;
-	success &= verifyLength(16, name);
+	if (!verifyLength(16, name))
+	{
+		return FALSE;
+	}
 
 	htolememcpy(value.mData, mCurBufferp, MVT_LLUUID, 16);
 	mCurBufferp += 16;
-	return success;
+	return TRUE;
 }
 
 const LLDataPackerBinaryBuffer&	LLDataPackerBinaryBuffer::operator=(const LLDataPackerBinaryBuffer &a)
@@ -698,15 +754,13 @@ BOOL LLDataPackerAsciiBuffer::packString(const std::string& value, const char *n
 
 BOOL LLDataPackerAsciiBuffer::unpackString(std::string& value, const char *name)
 {
-	BOOL success = TRUE;
 	char valuestr[DP_BUFSIZE]; /*Flawfinder: ignore*/
-	BOOL res = getValueStr(name, valuestr, DP_BUFSIZE); // NULL terminated
-	if (!res) // 
+	if (!getValueStr(name, valuestr, DP_BUFSIZE))  // NULL terminated
 	{
 		return FALSE;
 	}
 	value = valuestr;
-	return success;
+	return TRUE;
 }