[PATCH v3 09/14] RDS: IB: handle rds_ibdev release case instead of crashing the kernel

From: Santosh Shilimkar
Date: Mon Oct 05 2015 - 14:00:43 EST


Just in case we are still handling the QP receive completion while the
rds_ibdev is released, drop the connection instead of crashing the kernel.

Signed-off-by: Santosh Shilimkar <ssantosh@xxxxxxxxxx>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxxxxxx>
---
net/rds/ib_cm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 8f51d0d..2b2370e 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -285,7 +285,8 @@ static void rds_ib_tasklet_fn_recv(unsigned long data)
struct rds_ib_device *rds_ibdev = ic->rds_ibdev;
struct rds_ib_ack_state state;

- BUG_ON(!rds_ibdev);
+ if (!rds_ibdev)
+ rds_conn_drop(conn);

rds_ib_stats_inc(s_ib_tasklet_call);

--
1.9.1

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