From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 23 Mar 2011 02:44:30 +0000 (+0000)
Subject: myri10ge: fix rmmod crash
X-Git-Tag: firefly_0821_release~10186^2~270
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ed05cbe227791f00352725d9057bb2de895ceb01;p=firefly-linux-kernel-4.4.55.git

myri10ge: fix rmmod crash

commit cda6587c21a887254c8ed4b58da8fcc4040ab557 upstream.

Rmmod myri10ge crash at free_netdev() -> netif_napi_del(), because napi
structures are already deallocated. To fix call netif_napi_del() before
kfree() at myri10ge_free_slices().

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index f3624517cb0e..b8dc2d180200 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -3640,6 +3640,7 @@ static void myri10ge_free_slices(struct myri10ge_priv *mgp)
 			dma_free_coherent(&pdev->dev, bytes,
 					  ss->fw_stats, ss->fw_stats_bus);
 			ss->fw_stats = NULL;
+			netif_napi_del(&ss->napi);
 		}
 	}
 	kfree(mgp->ss);