From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 4 Aug 2017 11:12:08 +0300
Subject: IB/hns: checking for IS_ERR() instead of NULL
Git-commit: 5db465f235e74293e285e1fa924a55e52ba52a98
Patch-mainline: v4.13-rc5
References: fate#323912

The hns_roce_v1_create_lp_qp() returns NULL on error, not error pointers.

Fixes: bfcc681bd09d ("IB/hns: Fix the bug when free mr")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v1.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -733,7 +733,7 @@ static int hns_roce_v1_rsv_lp_qp(struct
 			continue;
 
 		free_mr->mr_free_qp[i] = hns_roce_v1_create_lp_qp(hr_dev, pd);
-		if (IS_ERR(free_mr->mr_free_qp[i])) {
+		if (!free_mr->mr_free_qp[i]) {
 			dev_err(dev, "Create loop qp failed!\n");
 			goto create_lp_qp_failed;
 		}