[PATCH AUTOSEL 5.6 038/129] xfs: fix incorrect test in xfs_alloc_ag_vextent_lastblock

[Sasha Levin]

From: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>

[ Upstream commit 77ca1eed5a7d2bf0905562eb1a15aac76bc19fe4 ]

When I lifted the code in xfs_alloc_ag_vextent_lastblock out of a loop,
I forgot to convert all the accesses to len to be pointer dereferences.

Coverity-id: 1457918
Fixes: 5113f8ec3753ed ("xfs: clean up weird while loop in xfs_alloc_ag_vextent_near")
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/xfs/libxfs/xfs_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index d8053bc96c4d2..5a130409f173e 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -1515,7 +1515,7 @@ xfs_alloc_ag_vextent_lastblock(
 	 * maxlen, go to the start of this block, and skip all those smaller
 	 * than minlen.
 	 */
-	if (len || args->alignment > 1) {
+	if (*len || args->alignment > 1) {
 		acur->cnt->bc_ptrs[0] = 1;
 		do {
 			error = xfs_alloc_get_rec(acur->cnt, bno, len, &i);
-- 
2.20.1