Btrfs: fix a memory leak in btrfs_get_sb
subvol_name should be freed if error occurs.
Signed-off-by: Shen Feng <shen@cn.fujitsu.com>
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 3814238..ccdcb7b 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -429,7 +429,7 @@
error = btrfs_parse_early_options(data, mode, fs_type,
&subvol_name, &fs_devices);
if (error)
- goto error;
+ return error;
error = btrfs_scan_one_device(dev_name, mode, fs_type, &fs_devices);
if (error)
@@ -468,7 +468,7 @@
if (error) {
up_write(&s->s_umount);
deactivate_super(s);
- goto error;
+ goto error_free_subvol_name;
}
btrfs_sb(s)->fs_info->bdev_holder = fs_type;
@@ -485,14 +485,14 @@
up_write(&s->s_umount);
deactivate_super(s);
error = PTR_ERR(root);
- goto error;
+ goto error_free_subvol_name;
}
if (!root->d_inode) {
dput(root);
up_write(&s->s_umount);
deactivate_super(s);
error = -ENXIO;
- goto error;
+ goto error_free_subvol_name;
}
}
@@ -508,7 +508,6 @@
btrfs_close_devices(fs_devices);
error_free_subvol_name:
kfree(subvol_name);
-error:
return error;
}