From: Yann Droneaud <[mailto:ydroneaud@opteya.com]>
Date: Fri, 28 Mar 2014 18:55:21 +0000 (-0400)
Subject: RDMA/cxgb4: set error code on kmalloc() failure
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bfd2793c9559ae73ae021797f1d4b097c27f24be;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

RDMA/cxgb4: set error code on kmalloc() failure

If kmalloc() fails in c4iw_alloc_ucontext(), the function
leaves but does not set an error code in ret variable:
it will return 0 to the caller.

This patch set ret to -ENOMEM in such case.

Cc: Steve Wise <swise@opengridcomputing.com>
Cc: Steve Wise <swise@chelsio.com>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index e36d2a27c431..79429256023a 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -128,8 +128,10 @@ static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev,
 		rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
 	} else {
 		mm = kmalloc(sizeof(*mm), GFP_KERNEL);
-		if (!mm)
+		if (!mm) {
+			ret = -ENOMEM;
 			goto err_free;
+		}
 
 		uresp.status_page_size = PAGE_SIZE;