From: Yijing Wang Date: Wed, 12 Feb 2014 00:36:51 +0000 (-0700) Subject: PCI: pciehp: Don't turn slot off when hot-added device already exists X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=50277c8b06d56f2345e1a0693db46db29fc6d063;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git 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 Signed-off-by: Bjorn Helgaas --- 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); diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c index b07d7cc2d697..1b533060ce65 100644 --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -50,7 +50,7 @@ int pciehp_configure_device(struct slot *p_slot) "at %04x:%02x:00, cannot hot-add\n", pci_name(dev), pci_domain_nr(parent), parent->number); pci_dev_put(dev); - ret = -EINVAL; + ret = -EEXIST; goto out; }