gianfar: ethernet vanishes after restoring from hibernation
If a gianfar ethernet device is down prior to hibernating a system, it will no longer be present upon system restore. For example: ~# ifconfig eth0 down ~# echo disk > /sys/power/state <trigger a restore from hibernation> ~# ifconfig eth0 up SIOCSIFFLAGS: No such device This happens because the restore function bails out early upon finding devices that were not up at hibernation. In doing so, it never gets to the netif_device_attach call at the end of the restore function. Adding the netif_device_attach as done here also makes the gfar_restore code consistent with what is done in the gfar_resume code. Cc: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1353,8 +1353,11 @@ static int gfar_restore(struct device *dev)
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struct gfar_private *priv = dev_get_drvdata(dev);
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struct net_device *ndev = priv->ndev;
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if (!netif_running(ndev))
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if (!netif_running(ndev)) {
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netif_device_attach(ndev);
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return 0;
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}
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gfar_init_bds(ndev);
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init_registers(ndev);
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