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>

1 files changed, 3 insertions, 1 deletions

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;