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preserve errno when processing error cases.

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This commit is contained in:
davidxu 2010-01-18 10:29:04 +00:00
parent 630da6fd8a
commit 553c4a5e4f
1 changed files with 3 additions and 1 deletions
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4
lib/libc/gen/sem_new.c
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@ -142,7 +142,7 @@ _sem_open(const char *name, int flags, ...)
va_list ap;
struct sem_nameinfo *ni = NULL;
sem_t *sem = NULL;
int fd = -1, mode, len;
int fd = -1, mode, len, errsave;
int value = 0;
if (name[0] != '/') {
@ -233,12 +233,14 @@ _sem_open(const char *name, int flags, ...)
return (sem);
error:
errsave = errno;
_pthread_mutex_unlock(&sem_llock);
if (fd != -1)
_close(fd);
if (sem != NULL)
munmap(sem, sizeof(sem_t));
free(ni);
errno = errsave;
return (SEM_FAILED);
}