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Fix error check in av_file_map()

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On failure, mmap() returns MAP_FAILED, which may or may not be -1.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-06-04 13:36:35 +01:00
parent dc6632f119
commit d0989bed22
1 changed files with 1 additions and 1 deletions
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2
libavutil/file.c
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@ -75,7 +75,7 @@ int av_file_map(const char *filename, uint8_t **bufptr, size_t *size,
#if HAVE_MMAP #if HAVE_MMAP
ptr = mmap(NULL, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0); ptr = mmap(NULL, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
if ((int)(ptr) == -1) { if (ptr == MAP_FAILED) {
err = AVERROR(errno); err = AVERROR(errno);
av_strerror(err, errbuf, sizeof(errbuf)); av_strerror(err, errbuf, sizeof(errbuf));
av_log(&file_log_ctx, AV_LOG_ERROR, "Error occurred in mmap(): %s\n", errbuf); av_log(&file_log_ctx, AV_LOG_ERROR, "Error occurred in mmap(): %s\n", errbuf);