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[for-3.11,3/3] rdma/cm: Only call cma_save_ib_info for CM REQs

Message ID 1374703569-16668-4-git-send-email-sean.hefty@intel.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Hefty, Sean July 24, 2013, 10:06 p.m. UTC 
From: Sean Hefty <sean.hefty@intel.com>

Calling cma_save_ib_info for CM SIDR REQs results in a crash
accessing an invalid path record pointer.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
---
 drivers/infiniband/core/cma.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 4314655..7c0f953 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -879,7 +879,8 @@  static int cma_save_net_info(struct rdma_cm_id *id, struct rdma_cm_id *listen_id
 {
 	struct cma_hdr *hdr;
 
-	if (listen_id->route.addr.src_addr.ss_family == AF_IB) {
+	if ((listen_id->route.addr.src_addr.ss_family == AF_IB) &&
+	    (ib_event->event == IB_CM_REQ_RECEIVED)) {
 		cma_save_ib_info(id, listen_id, ib_event->param.req_rcvd.primary_path);
 		return 0;
 	}