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cxgb4: Fix error codes in c4iw_create_cq() 

If one of these kmalloc() calls fails then we return ERR_PTR(0) which is
NULL.  It results in a NULL dereference in the callers.

Fixes: cfdda9d764 ("RDMA/cxgb4: Add driver for Chelsio T4 RNIC")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Dan Carpenter 2017-07-13 10:47:40 +03:00 committed by Doug Ledford
parent 6031e079aa
commit 6ebedacbb4
1 changed files with 1 additions and 0 deletions
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1
drivers/infiniband/hw/cxgb4/cq.c
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@ -963,6 +963,7 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev,
goto err3; goto err3;
if (ucontext) { if (ucontext) {
ret = -ENOMEM;
mm = kmalloc(sizeof *mm, GFP_KERNEL); mm = kmalloc(sizeof *mm, GFP_KERNEL);
if (!mm) if (!mm)
goto err4; goto err4;