From: Georg Hofmann <georg@hofmannsweb.com>
Date: Thu, 14 Mar 2013 06:54:09 +0000 (+0000)
Subject: net: fec: fix missing napi_disable call
X-Git-Tag: upstream/snapshot3+hdmi~5491^2~19
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3f104c38259dcb3e5443c246f0805bc04d887cc3;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

net: fec: fix missing napi_disable call

Commit dc975382d2ef36be7e78fac3717927de1a5abcd8 introduces napi support
but never calls napi_disable. This will generate a kernel oops
(kernel BUG at include/linux/netdevice.h:473!) every time, when
ndo_stop is called followed by ndo_start.
Add the missing napi_diable call.

Signed-off-by: Georg Hofmann <georg@hofmannsweb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index 61d2e62..e3f3937 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c
@@ -1441,6 +1441,7 @@ fec_enet_close(struct net_device *ndev)
 	struct fec_enet_private *fep = netdev_priv(ndev);
 
 	/* Don't know what to do yet. */
+	napi_disable(&fep->napi);
 	fep->opened = 0;
 	netif_stop_queue(ndev);
 	fec_stop(ndev);