RDMA/amso1100: Fix memory leak in c2_reg_phys_mr()

If the allocation of mr fails, then c2_reg_phys_mr() leaks the
page_list array it allocated earlier.

This was Coverity CID #1413.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/amso1100/c2_provider.c b/drivers/infiniband/hw/amso1100/c2_provider.c
index 622d6f1f920..da98d9f7142 100644
--- a/drivers/infiniband/hw/amso1100/c2_provider.c
+++ b/drivers/infiniband/hw/amso1100/c2_provider.c
@@ -390,8 +390,10 @@ static struct ib_mr *c2_reg_phys_mr(struct ib_pd *ib_pd,
         }
 
         mr = kmalloc(sizeof(*mr), GFP_KERNEL);
-        if (!mr)
+        if (!mr) {
+                vfree(page_list);
                 return ERR_PTR(-ENOMEM);
+        }
 
         mr->pd = to_c2pd(ib_pd);
         pr_debug("%s - page shift %d, pbl_depth %d, total_len %u, "