From 6cf8bfbf5e88edfb09a2bf0631a067060f534592 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 20 Mar 2010 11:22:10 +0000 Subject: [PATCH] Btrfs: check btrfs_get_extent return for IS_ERR() btrfs_get_extent() never returns NULL, only a valid pointer or ERR_PTR() Signed-off-by: Dan Carpenter Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 74d8913..2b7dd88 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -510,7 +510,7 @@ static int should_defrag_range(struct inode *inode, u64 start, u64 len, em = btrfs_get_extent(inode, NULL, 0, start, len, 0); unlock_extent(io_tree, start, start + len - 1, GFP_NOFS); - if (!em) + if (IS_ERR(em)) return 0; } -- 2.7.4