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RDMA/amso1100: Add check for NULL reply_msg in c2_intr()

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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>
This commit is contained in:
Tom Tucker 2008-04-16 21:09:34 -07:00 committed by Roland Dreier
parent bbf8eed1a0
commit 9285faa1e7
2 changed files with 7 additions and 3 deletions
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4
drivers/infiniband/hw/amso1100/c2_cq.c
View File

@ -422,8 +422,8 @@ void c2_free_cq(struct c2_dev *c2dev, struct c2_cq *cq)
goto bail1; goto bail1;
reply = (struct c2wr_cq_destroy_rep *) (unsigned long) (vq_req->reply_msg); reply = (struct c2wr_cq_destroy_rep *) (unsigned long) (vq_req->reply_msg);
if (reply)
vq_repbuf_free(c2dev, reply); vq_repbuf_free(c2dev, reply);
bail1: bail1:
vq_req_free(c2dev, vq_req); vq_req_free(c2dev, vq_req);
bail0: bail0:

6
drivers/infiniband/hw/amso1100/c2_intr.c
View File

@ -174,7 +174,11 @@ static void handle_vq(struct c2_dev *c2dev, u32 mq_index)
return; return;
} }
err = c2_errno(reply_msg); if (reply_msg)
err = c2_errno(reply_msg);
else
err = -ENOMEM;
if (!err) switch (req->event) { if (!err) switch (req->event) {
case IW_CM_EVENT_ESTABLISHED: case IW_CM_EVENT_ESTABLISHED:
c2_set_qp_state(req->qp, c2_set_qp_state(req->qp,