[FFmpeg-cvslog] lavfi/buffersink: fix possible leaks after allocation failures.

Nicolas George git at videolan.org
Sun Apr 21 17:14:37 CEST 2013


ffmpeg | branch: master | Nicolas George <nicolas.george at normalesup.org> | Sun Apr 21 15:33:18 2013 +0200| [fd7a7e11b94b12259c6f1e375da15298cbc37e83] | committer: Nicolas George

lavfi/buffersink: fix possible leaks after allocation failures.

Should fix Coverity CID 1005313, 1005314, 1005315.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fd7a7e11b94b12259c6f1e375da15298cbc37e83
---

 libavfilter/buffersink.c |   20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/libavfilter/buffersink.c b/libavfilter/buffersink.c
index 14ead2b..234027d 100644
--- a/libavfilter/buffersink.c
+++ b/libavfilter/buffersink.c
@@ -401,8 +401,10 @@ static int vsink_query_formats(AVFilterContext *ctx)
     CHECK_LIST_SIZE(pixel_fmts)
     if (buf->pixel_fmts_size) {
         for (i = 0; i < NB_ITEMS(buf->pixel_fmts); i++)
-            if ((ret = ff_add_format(&formats, buf->pixel_fmts[i])) < 0)
+            if ((ret = ff_add_format(&formats, buf->pixel_fmts[i])) < 0) {
+                ff_formats_unref(&formats);
                 return ret;
+            }
         ff_set_common_formats(ctx, formats);
     } else {
         ff_default_query_formats(ctx);
@@ -443,19 +445,25 @@ static int asink_query_formats(AVFilterContext *ctx)
 
     if (buf->sample_fmts_size) {
         for (i = 0; i < NB_ITEMS(buf->sample_fmts); i++)
-            if ((ret = ff_add_format(&formats, buf->sample_fmts[i])) < 0)
+            if ((ret = ff_add_format(&formats, buf->sample_fmts[i])) < 0) {
+                ff_formats_unref(&formats);
                 return ret;
+            }
         ff_set_common_formats(ctx, formats);
     }
 
     if (buf->channel_layouts_size || buf->channel_counts_size ||
         buf->all_channel_counts) {
         for (i = 0; i < NB_ITEMS(buf->channel_layouts); i++)
-            if ((ret = ff_add_channel_layout(&layouts, buf->channel_layouts[i])) < 0)
+            if ((ret = ff_add_channel_layout(&layouts, buf->channel_layouts[i])) < 0) {
+                ff_channel_layouts_unref(&layouts);
                 return ret;
+            }
         for (i = 0; i < NB_ITEMS(buf->channel_counts); i++)
-            if ((ret = ff_add_channel_layout(&layouts, FF_COUNT2LAYOUT(buf->channel_counts[i]))) < 0)
+            if ((ret = ff_add_channel_layout(&layouts, FF_COUNT2LAYOUT(buf->channel_counts[i]))) < 0) {
+                ff_channel_layouts_unref(&layouts);
                 return ret;
+            }
         if (buf->all_channel_counts) {
             if (layouts)
                 av_log(ctx, AV_LOG_WARNING,
@@ -469,8 +477,10 @@ static int asink_query_formats(AVFilterContext *ctx)
     if (buf->sample_rates_size) {
         formats = NULL;
         for (i = 0; i < NB_ITEMS(buf->sample_rates); i++)
-            if ((ret = ff_add_format(&formats, buf->sample_rates[i])) < 0)
+            if ((ret = ff_add_format(&formats, buf->sample_rates[i])) < 0) {
+                ff_formats_unref(&formats);
                 return ret;
+            }
         ff_set_common_samplerates(ctx, formats);
     }
 



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