From: Amir Vadai <amirv@mellanox.co.il>
Date: Tue, 15 Jun 2010 13:00:15 +0000 (+0300)
Subject: sdp: protect sdp_auto_moderation from device removal
X-Git-Tag: v4.1.12-92~264^2~5^2~167
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=360d9b3dd90ac8231fd461daac1a611f532d3161;p=users%2Fjedix%2Flinux-maple.git

sdp: protect sdp_auto_moderation from device removal

Signed-off-by: Amir Vadai <amirv@mellanox.co.il>
---

diff --git a/drivers/infiniband/ulp/sdp/sdp_main.c b/drivers/infiniband/ulp/sdp/sdp_main.c
index a631a2517ba4..6974bee7ddb4 100644
--- a/drivers/infiniband/ulp/sdp/sdp_main.c
+++ b/drivers/infiniband/ulp/sdp/sdp_main.c
@@ -363,6 +363,9 @@ static void sdp_auto_moderation(struct sdp_sock *ssk)
 	int moder_time;
 	int err;
 
+	if (unlikely(!ssk->rx_ring.cq))
+		return;
+
 	if (!mod->adaptive_rx_coal)
 		return;