apparmor: properly check lxc_strmmap ret value

Reported-by: coverity (CID #1517320) Signed-off-by: Alexander Mikhalitsyn <[email protected]>
scandian · Dec 12, 2022 · 6ea4a6c · 6ea4a6c
1 parent 667292a
commit 6ea4a6c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/lxc/lsm/apparmor.c b/src/lxc/lsm/apparmor.c
@@ -975,7 +975,7 @@ static int load_apparmor_profile(struct lsm_ops *ops, struct lxc_conf *conf, con
 		old_len = profile_sb.st_size;
 		old_content = lxc_strmmap(NULL, old_len, PROT_READ,
 		                          MAP_PRIVATE, profile_fd, 0);
-		if (!old_content) {
+		if (old_content == MAP_FAILED) {
 			SYSERROR("Failed to mmap old profile from %s",
 			         profile_path);
 			goto out;