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Handle errors when getting SC_PAGESIZE

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Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Fabio M. Di Nitto <fdinitto@redhat.com>
This commit is contained in:
Jan Friesse 2013-06-12 16:06:08 +02:00
parent 56ee492471
commit c264eb3be9
1 changed files with 6 additions and 1 deletions
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7
lib/cpg.c
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@ -736,6 +736,7 @@ memory_map (char *path, const char *file, void **buf, size_t bytes)
int32_t i;
size_t written;
size_t page_size;
long int sysconf_page_size;
snprintf (path, PATH_MAX, "/dev/shm/%s", file);
@ -752,7 +753,11 @@ memory_map (char *path, const char *file, void **buf, size_t bytes)
if (res == -1) {
goto error_close_unlink;
}
page_size = (size_t)sysconf(_SC_PAGESIZE);
sysconf_page_size = sysconf(_SC_PAGESIZE);
if (sysconf_page_size <= 0) {
goto error_close_unlink;
}
page_size = sysconf_page_size;
buffer = malloc (page_size);
if (buffer == NULL) {
goto error_close_unlink;