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fix incorrect allocation failure check in pthread_create 

mmap returns MAP_FAILED not 0 because some idiot thought the ability
to mmap the null pointer page would be a good idea...
This commit is contained in:
Rich Felker 2011-09-27 12:18:44 -04:00
parent 7e14ed1360
commit 3f39c9b313
1 changed files with 1 additions and 1 deletions
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2
src/thread/pthread_create.c
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@ -102,7 +102,7 @@ int pthread_create(pthread_t *res, const pthread_attr_t *attr, void *(*entry)(vo
}
size += __pthread_tsd_size;
map = mmap(0, size, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, -1, 0);
if (!map) return EAGAIN;
if (map == MAP_FAILED) return EAGAIN;
if (guard) mprotect(map, guard, PROT_NONE);
tsd = map + size - __pthread_tsd_size;