[PATCH 2/3] pciehp: Fix led status when enabling already enabled slot.

[Ashok Raj]

If an error occurs enabling a slot on a hot plug event, the presence LED 
is disabled.

It is not an error, though, when the slot was already enabled. This
patch returns success if called to enable an already enabled slot. This
is in the same spirit of the special handling for EEXISTS when
pciehp_configure_device determines the slot devices already exist.

Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx

Signed-off-by: Ashok Raj <ashok.raj@xxxxxxxxx>
Reviewed-by: Keith Busch <keith.busch@xxxxxxxxx>
---
 drivers/pci/hotplug/pciehp_ctrl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index efe69e8..ec0b4c1 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -410,7 +410,7 @@ int pciehp_enable_slot(struct slot *p_slot)
 		if (getstatus) {
 			ctrl_info(ctrl, "Slot(%s): Already enabled\n",
 				  slot_name(p_slot));
-			return -EINVAL;
+			return 0;
 		}
 	}
 
-- 
2.7.4