Do not try to free memory that was never allocated (partial revert of r20231).

Originally committed as revision 20252 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/indeo2.c

@@ -219,7 +219,6 @@ static av_cold int ir2_decode_end(AVCodecContext *avctx){
 
     if (pic->data[0])
         avctx->release_buffer(avctx, pic);
-    av_freep(&ic->picture);
 
     return 0;
 }

libavcodec/loco.c

@@ -281,7 +281,6 @@ static av_cold int decode_end(AVCodecContext *avctx){
 
     if (pic->data[0])
         avctx->release_buffer(avctx, pic);
-    av_freep(&l->pic);
 
     return 0;
 }

libavcodec/qdrw.c

@@ -146,7 +146,6 @@ static av_cold int decode_end(AVCodecContext *avctx){
 
     if (pic->data[0])
         avctx->release_buffer(avctx, pic);
-    av_freep(&a->pic);
 
     return 0;
 }

libavcodec/truemotion2.c

@@ -866,7 +866,6 @@ static av_cold int decode_end(AVCodecContext *avctx){
 
     if (pic->data[0])
         avctx->release_buffer(avctx, pic);
-    av_freep(&l->pic);
 
     return 0;
 }

libavcodec/ulti.c

@@ -61,7 +61,6 @@ static av_cold int ulti_decode_end(AVCodecContext *avctx){
 
     if (pic->data[0])
         avctx->release_buffer(avctx, pic);
-    av_freep(&s->frame);
 
     return 0;
 }

libavcodec/wnv1.c

@@ -149,7 +149,6 @@ static av_cold int decode_end(AVCodecContext *avctx){
 
     if (pic->data[0])
         avctx->release_buffer(avctx, pic);
-    av_freep(&l->pic);
 
     return 0;
 }

libavcodec/xl.c

@@ -134,7 +134,6 @@ static av_cold int decode_end(AVCodecContext *avctx){
 
     if (pic->data[0])
         avctx->release_buffer(avctx, pic);
-    av_freep(&a->pic);
 
     return 0;
 }