swscale: fix NULL checking in sws_alloc_context()
authorXi Wang <xi.wang@gmail.com>
Fri, 4 Jan 2013 21:15:33 +0000 (21:15 +0000)
committerDerek Buitenhuis <derek.buitenhuis@gmail.com>
Sat, 5 Jan 2013 01:44:00 +0000 (20:44 -0500)
commitf73f76fd202b310e8e1d0215b2e0cf038cd18c4a
treebc570a8840022281eec20d007e124a7a5f29d17a
parent3b81bba3bc5aca98d891cb377d27566de4745225
swscale: fix NULL checking in sws_alloc_context()

sws_getCachedContext() and sws_getContext() expect sws_alloc_context()
to return NULL when out of memory, as follows.

    if (!(context = sws_alloc_context()))
        return NULL;

This patch fixes sws_alloc_context() to return NULL in that case.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
libswscale/utils.c