btrfs: consolidate failure exits in btrfs_mount() a bit
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f628a6a..15c8ae5 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -630,6 +630,7 @@
save_mount_options(sb, data);
cleancache_init_fs(sb);
+ sb->s_flags |= MS_ACTIVE;
return 0;
fail_close:
@@ -929,14 +930,10 @@
}
if (s->s_root) {
- if ((flags ^ s->s_flags) & MS_RDONLY) {
- deactivate_locked_super(s);
- error = -EBUSY;
- goto error_close_devices;
- }
-
btrfs_close_devices(fs_devices);
free_fs_info(fs_info);
+ if ((flags ^ s->s_flags) & MS_RDONLY)
+ error = -EBUSY;
} else {
char b[BDEVNAME_SIZE];
@@ -945,19 +942,11 @@
btrfs_sb(s)->fs_info->bdev_holder = fs_type;
error = btrfs_fill_super(s, fs_devices, data,
flags & MS_SILENT ? 1 : 0);
- if (error) {
- deactivate_locked_super(s);
- return ERR_PTR(error);
- }
-
- s->s_flags |= MS_ACTIVE;
}
- root = get_default_root(s, subvol_objectid);
- if (IS_ERR(root)) {
+ root = !error ? get_default_root(s, subvol_objectid) : ERR_PTR(error);
+ if (IS_ERR(root))
deactivate_locked_super(s);
- return root;
- }
return root;