Commit 167d652e authored May 17, 2017 by Jeff Mahoney Committed by Greg Kroah-Hartman Jun 14, 2017

btrfs: fix memory leak in update_space_info failure path



commit 896533a7da929136d0432713f02a3edffece2826 upstream.

If we fail to add the space_info kobject, we'll leak the memory
for the percpu counter.

Fixes: 6ab0a202 (btrfs: publish allocation data in sysfs)
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 0ff6be8f

fs/btrfs/extent-tree.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -3509,6 +3509,7 @@ static int update_space_info(struct btrfs_fs_info *info, u64 flags,
		info->space_info_kobj, "%s",
		alloc_name(found->flags));
		if (ret) {
		percpu_counter_destroy(&found->total_bytes_pinned);
		kfree(found);
		return ret;
		}