3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jeff Mahoney <jeffm@xxxxxxxx> commit 896533a7da929136d0432713f02a3edffece2826 upstream. If we fail to add the space_info kobject, we'll leak the memory for the percpu counter. Fixes: 6ab0a2029c (btrfs: publish allocation data in sysfs) Signed-off-by: Jeff Mahoney <jeffm@xxxxxxxx> Reviewed-by: Liu Bo <bo.li.liu@xxxxxxxxxx> Signed-off-by: David Sterba <dsterba@xxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/btrfs/extent-tree.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3509,6 +3509,7 @@ static int update_space_info(struct btrf info->space_info_kobj, "%s", alloc_name(found->flags)); if (ret) { + percpu_counter_destroy(&found->total_bytes_pinned); kfree(found); return ret; }