3.19.8-ckt20 -stable review patch. If anyone has any objections, please let me know.
---8<------------------------------------------------------------
From: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
commit 99164f9e62a391b5f4b7923b624d182b5d2859e0 upstream.
In order to avoid an Unbalanced pm_runtime_enable in the DaVinci
emac driver when the device is removed and re-probed, and a
pm_runtime_disable() call in davinci_emac_remove().
Actually, using unbind/bind on a TI DM8168 SoC gives :
$ echo 4a120000.ethernet > /sys/bus/platform/drivers/davinci_emac/unbind
net eth1: DaVinci EMAC: davinci_emac_remove()
$ echo 4a120000.ethernet > /sys/bus/platform/drivers/davinci_emac/bind
davinci_emac 4a120000.ethernet: Unbalanced pm_runtime_enable
Cc: Brian Hutchinson <b.hutchman@xxxxxxxxx>
Fixes: 3ba97381343b ("net: ethernet: davinci_emac: add pm_runtime support")
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
drivers/net/ethernet/ti/davinci_emac.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 5fae435..ee40f4e 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -2082,6 +2082,7 @@ static int davinci_emac_remove(struct platform_device *pdev)
cpdma_ctlr_destroy(priv->dma);
unregister_netdev(ndev);
+ pm_runtime_disable(&pdev->dev);
free_netdev(ndev);
return 0;
--
2.7.4
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