From: Wang Dongsheng <dongsheng.wang-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: kumar.gala-KZfg59tc24xl57MIdRCFDg@public.gmane.org
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
Subject: [PATCH] powerpc/gianfar: fix ethernet cannot work after restoring from hibernation
Date: Fri, 2 Nov 2012 09:52:05 +0800 [thread overview]
Message-ID: <1351821125-9821-1-git-send-email-dongsheng.wang@freescale.com> (raw)
we should make sure a ethernet has been taken down when system into hibernation
status. when the system restoring form hibernation, the ethernet cannot be
taken up.
eg:
~# ifconfig eth0 down
~# echo disk > /sys/power/state
hibernation restore
~# ifconfig eth0 up
SIOCSIFFLAGS: No such device
Signed-off-by: Wang Dongsheng <dongsheng.wang-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
---
drivers/net/ethernet/freescale/gianfar.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 4605f72..487b944 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -1345,8 +1345,11 @@ static int gfar_restore(struct device *dev)
struct gfar_private *priv = dev_get_drvdata(dev);
struct net_device *ndev = priv->ndev;
- if (!netif_running(ndev))
+ if (!netif_running(ndev)) {
+ netif_device_attach(ndev);
+
return 0;
+ }
gfar_init_bds(ndev);
init_registers(ndev);
--
1.7.5.1
reply other threads:[~2012-11-02 1:52 UTC|newest]
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