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avcodec/msrle: check return code for success before use

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The check is possibly redundant, but better to check for errors
that dont occur than to skip the check and crash

Fixes CID1197060

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 754f84663e)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2014-04-06 04:01:24 +02:00
parent e5546d4871
commit a61998e4f4
1 changed files with 3 additions and 0 deletions
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3
libavcodec/msrle.c
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@@ -118,6 +118,9 @@ static int msrle_decode_frame(AVCodecContext *avctx,
uint8_t *buf = avpkt->data + (avctx->height-1)*istride; uint8_t *buf = avpkt->data + (avctx->height-1)*istride;
int i, j; int i, j;
if (linesize < 0)
return linesize;
for (i = 0; i < avctx->height; i++) { for (i = 0; i < avctx->height; i++) {
if (avctx->bits_per_coded_sample == 4) { if (avctx->bits_per_coded_sample == 4) {
for (j = 0; j < avctx->width - 1; j += 2) { for (j = 0; j < avctx->width - 1; j += 2) {