PCI: pciehp: Don't turn slot off when hot-added device already exists

If we found device already exists during hot add device, we should leave
it, not turn the slot off.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index fec99a164d93..b4a4ac150e61 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -233,7 +233,8 @@ static int board_added(struct slot *p_slot)
         if (retval) {
                 ctrl_err(ctrl, "Cannot add device at %04x:%02x:00\n",
                          pci_domain_nr(parent), parent->number);
-                goto err_exit;
+                if (retval != -EEXIST)
+                        goto err_exit;
         }
 
         pciehp_green_led_on(p_slot);