Btrfs: fix error return code in btrfs_init_test_fs()

Fix to return a negative error code from the kern_mount() error handling
case instead of 0(ret is set to 0 by register_filesystem), as done
elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>

diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index 10eb249ef891ce88a24df90cd9afecdcc5d1dc75..02223f3f78f4b54bc1fca294d71ac75b0e61b2ce 100644 (file)
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -68,7 +68,7 @@ int btrfs_init_test_fs(void)
        if (IS_ERR(test_mnt)) {
                printk(KERN_ERR "btrfs: cannot mount test file system\n");
                unregister_filesystem(&test_type);
-               return ret;
+               return PTR_ERR(test_mnt);
        }
        return 0;
 }