Commit 0e4dcbef authored Jun 01, 2010 by Dan Carpenter Committed by Chris Mason Jun 11, 2010

Btrfs: uninitialized data is check_path_shared()



refs can be used with uninitialized data if btrfs_lookup_extent_info()
fails on the first pass through the loop.  In the original code if that
happens then check_path_shared() probably returns 1, this patch
changes it to return 1 for safety.

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

parent 83609779

fs/btrfs/inode.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2673,7 +2673,7 @@ static int check_path_shared(struct btrfs_root *root,
		struct extent_buffer *eb;
		int level;
		int ret;
		u64 refs;
		u64 refs = 1;

		for (level = 0; level < BTRFS_MAX_LEVEL; level++) {
		if (!path->nodes[level])

Admin message