RDS: IB: handle rds_ibdev release case instead of crashing the kernel

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@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 8f51d0d26578..2b2370e7f356 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);