[FFmpeg-cvslog] avcodec/svq1dec: Check init_get_bits8() for failure

[Michael Niedermayer]

ffmpeg | branch: release/2.4 | Michael Niedermayer <michael at niedermayer.cc> | Fri Sep  4 01:18:13 2015 +0200| [45c30d84b6c57b529687096bd7043c6999bd2d14] | committer: Michael Niedermayer

avcodec/svq1dec: Check init_get_bits8() for failure

Fixes: CID1322313

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit a51d4246d8ac96acee735e7e5dedb9d9ef27a594)

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=45c30d84b6c57b529687096bd7043c6999bd2d14
---

 libavcodec/svq1dec.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index 2f9ea16..1212522 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -617,9 +617,12 @@ static int svq1_decode_frame(AVCodecContext *avctx, void *data,
     uint8_t *current;
     int result, i, x, y, width, height;
     svq1_pmv *pmv;
+    int ret;
 
     /* initialize bit buffer */
-    init_get_bits8(&s->gb, buf, buf_size);
+    ret = init_get_bits8(&s->gb, buf, buf_size);
+    if (ret < 0)
+        return ret;
 
     /* decode frame header */
     s->frame_code = get_bits(&s->gb, 22);