From aa0467d8d2a00e75b2bb6a56a4ee6d70c5d1928f Mon Sep 17 00:00:00 2001 From: David Sterba Date: Fri, 3 Jun 2011 16:29:08 +0200 Subject: [PATCH] btrfs: fix uninitialized variable warning With Linus' tree, today's linux-next build (powercp ppc64_defconfig) produced this warning: fs/btrfs/delayed-inode.c: In function 'btrfs_delayed_update_inode': fs/btrfs/delayed-inode.c:1598:6: warning: 'ret' may be used uninitialized in this function Introduced by commit 16cdcec736cd ("btrfs: implement delayed inode items operation"). This fixes a bug in btrfs_update_inode(): if the returned value from btrfs_delayed_update_inode is a nonzero garbage, inode stat data are not updated and several call paths may hit a BUG_ON or fail with strange code. Reported-by: Stephen Rothwell Signed-off-by: David Sterba --- fs/btrfs/delayed-inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index c61c32cf0f71..6462c29d2d37 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -1595,7 +1595,7 @@ int btrfs_delayed_update_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode) { struct btrfs_delayed_node *delayed_node; - int ret; + int ret = 0; delayed_node = btrfs_get_or_create_delayed_node(inode); if (IS_ERR(delayed_node))