[FFmpeg-devel] [PATCH] Fix return value check for open()

[Martin Storsjö]

Hi,

According to all manuals I've checked (both linux & darwin manpages, and 
msdn docs), open() returns exactly -1 on error, not any generic negative 
number. The attached patch fixes the return value check in 
libavformat/file.c.

On WinCE, the return values from successful open() calls are negative 
sometimes, making url_open() calls fail randomly. This is fixed by the 
attached patch.

// Martin
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