[FFmpeg-cvslog] Check mmap() return against correct value

[unknown author]

ffmpeg | branch: master | unknown author <ports at freebsd> | Mon Apr 25 01:48:46 2011 +0200| [2671ab3996672c43b02076daca5bf00c5a6f1c68] | committer: Michael Niedermayer

Check mmap() return against correct value
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2671ab3996672c43b02076daca5bf00c5a6f1c68
---

 libswscale/utils.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/libswscale/utils.c b/libswscale/utils.c
index a343bf2..6e8e40b 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -919,7 +919,11 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
             c->chrMmx2FilterCode = av_malloc(c->chrMmx2FilterCodeSize);
 #endif
 
+#ifdef MAP_ANONYMOUS
+            if (c->lumMmx2FilterCode == MAP_FAILED || c->chrMmx2FilterCode == MAP_FAILED)
+#else
             if (!c->lumMmx2FilterCode || !c->chrMmx2FilterCode)
+#endif
                 return AVERROR(ENOMEM);
             FF_ALLOCZ_OR_GOTO(c, c->hLumFilter   , (dstW        /8+8)*sizeof(int16_t), fail);
             FF_ALLOCZ_OR_GOTO(c, c->hChrFilter   , (c->chrDstW  /4+8)*sizeof(int16_t), fail);