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authorTom Tucker <tom@opengridcomputing.com>2008-04-16 21:09:34 -0700
committerRoland Dreier <rolandd@cisco.com>2008-04-16 21:09:34 -0700
commit9285faa1e7c8ffcc8901c40f6e1cc06d93e92431 (patch)
tree094647e312edba67f6f5b555020ecb6fd7f34f67
parentbbf8eed1a0f8949f7385146624f736f829992a70 (diff)
downloadop-kernel-dev-9285faa1e7c8ffcc8901c40f6e1cc06d93e92431.zip
op-kernel-dev-9285faa1e7c8ffcc8901c40f6e1cc06d93e92431.tar.gz
RDMA/amso1100: Add check for NULL reply_msg in c2_intr()
Fix a place where we might dereference a NULL pointer; this fixes Coverity CID 1392. On inspection I also found a place where we could attempt to kmem_cache_free() a NULL pointer, so fix this too. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
-rw-r--r--drivers/infiniband/hw/amso1100/c2_cq.c4
-rw-r--r--drivers/infiniband/hw/amso1100/c2_intr.c6
2 files changed, 7 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/amso1100/c2_cq.c b/drivers/infiniband/hw/amso1100/c2_cq.c
index d2b3366..bb17cce 100644
--- a/drivers/infiniband/hw/amso1100/c2_cq.c
+++ b/drivers/infiniband/hw/amso1100/c2_cq.c
@@ -422,8 +422,8 @@ void c2_free_cq(struct c2_dev *c2dev, struct c2_cq *cq)
goto bail1;
reply = (struct c2wr_cq_destroy_rep *) (unsigned long) (vq_req->reply_msg);
-
- vq_repbuf_free(c2dev, reply);
+ if (reply)
+ vq_repbuf_free(c2dev, reply);
bail1:
vq_req_free(c2dev, vq_req);
bail0:
diff --git a/drivers/infiniband/hw/amso1100/c2_intr.c b/drivers/infiniband/hw/amso1100/c2_intr.c
index 0d0bc33..3b50954 100644
--- a/drivers/infiniband/hw/amso1100/c2_intr.c
+++ b/drivers/infiniband/hw/amso1100/c2_intr.c
@@ -174,7 +174,11 @@ static void handle_vq(struct c2_dev *c2dev, u32 mq_index)
return;
}
- err = c2_errno(reply_msg);
+ if (reply_msg)
+ err = c2_errno(reply_msg);
+ else
+ err = -ENOMEM;
+
if (!err) switch (req->event) {
case IW_CM_EVENT_ESTABLISHED:
c2_set_qp_state(req->qp,
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