Commit 8f71f3e0 authored Mar 04, 2013 by Liu Bo Committed by Josef Bacik Mar 04, 2013

Btrfs: check for NULL pointer in updating reloc roots



Add a check for NULL pointer to avoid invalid reference.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

parent 00d71c9c

fs/btrfs/relocation.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1269,6 +1269,8 @@ static int __update_reloc_root(struct btrfs_root *root, int del)
		}
		spin_unlock(&rc->reloc_root_tree.lock);

		if (!node)
		return 0;
		BUG_ON((struct btrfs_root *)node->data != root);

		if (!del) {

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