| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.11 109/150] btrfs: fix memory leak in update_space_info failure path | Date | Mon, 12 Jun 2017 17:25:16 +0200 |
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4.11-stable review patch. If anyone has any objections, please let me know.
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From: Jeff Mahoney <jeffm@suse.com>
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@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>
--- fs/btrfs/extent-tree.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3983,6 +3983,7 @@ 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; }
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