[openib-general] [PATCH] mthca: Don't call CQ completion handler if it doesn't exist

[Hal Rosenstock]

mthca: Don't call CQ completion handler if it doesn't exist

Signed-off-by: Hal Rosenstock <halr at voltaire.com>

Index: mthca_cq.c
===================================================================
--- mthca_cq.c	(revision 2154)
+++ mthca_cq.c	(working copy)
@@ -206,7 +206,8 @@
 
 	++cq->arm_sn;
 
-	cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
+	if (cq->ibcq.comp_handler)
+		cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
 }
 
 void mthca_cq_clean(struct mthca_dev *dev, u32 cqn, u32 qpn)