Commit 6cf8bfbf authored Mar 20, 2010 by Dan Carpenter Committed by Chris Mason Mar 30, 2010

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 <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

parent c2b96929

fs/btrfs/ioctl.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}