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Commit 896533a7 authored by Jeff Mahoney's avatar Jeff Mahoney Committed by David Sterba
Browse files

btrfs: fix memory leak in update_space_info failure path 



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)
Cc: <stable@vger.kernel.org> # v3.14+
Signed-off-by: default avatarJeff Mahoney <jeffm@suse.com>
Reviewed-by: default avatarLiu Bo <bo.li.liu@oracle.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent cc2b702c

fs/btrfs/extent-tree.c

+1 −0
Original line number Diff line number Diff line
@@ -3993,6 +3993,7 @@ 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;

	}