RDMA/nes: Fix use-after-free in mini_cm_dec_refcnt_listen()

Fix use-after-free spotted by Coverity checker flagged by Adrian Bunk.

Signed-off-by: Faisal Latif <flatif@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 78e845c..6c298aa 100644 (file)
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -947,6 +947,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
                nes_debug(NES_DBG_CM, "destroying listener (%p)\n", listener);
 
                kfree(listener);
+               listener = NULL;
                ret = 0;
                cm_listens_destroyed++;
        } else {