PCI: shpchp: Make shpchp_unconfigure_device() void

shpchp_unconfigure_device() always returned 0, so there's no reason for a
return value.  In addition, remove_board() checked the return value for
possible error which is unnecessary.

Convert shpchp_unconfigure_device() to a void function and remove the
return value check.  This addresses the following Coccinelle warning:

  drivers/pci/hotplug/shpchp_pci.c:66:5-7: Unneeded variable: "rc".  Return "0" on line 86

Link: https://lore.kernel.org/r/20200521190457.1066600-1-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index f7f13ee..6e85885 100644 (file)
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -164,7 +164,7 @@ u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl);
 u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl);
 u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl);
 int shpchp_configure_device(struct slot *p_slot);
-int shpchp_unconfigure_device(struct slot *p_slot);
+void shpchp_unconfigure_device(struct slot *p_slot);
 void cleanup_slots(struct controller *ctrl);
 void shpchp_queue_pushbutton_work(struct work_struct *work);
 int shpc_init(struct controller *ctrl, struct pci_dev *pdev);

diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
index 078003d..afdc52d 100644 (file)
--- a/drivers/pci/hotplug/shpchp_ctrl.c
+++ b/drivers/pci/hotplug/shpchp_ctrl.c
@@ -341,8 +341,7 @@ static int remove_board(struct slot *p_slot)
        u8 hp_slot;
        int rc;
 
-       if (shpchp_unconfigure_device(p_slot))
-               return(1);
+       shpchp_unconfigure_device(p_slot);
 
        hp_slot = p_slot->device - ctrl->slot_device_offset;
        p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);

diff --git a/drivers/pci/hotplug/shpchp_pci.c b/drivers/pci/hotplug/shpchp_pci.c
index 1157013..36db0c3 100644 (file)
--- a/drivers/pci/hotplug/shpchp_pci.c
+++ b/drivers/pci/hotplug/shpchp_pci.c
@@ -61,9 +61,8 @@ int shpchp_configure_device(struct slot *p_slot)
        return ret;
 }
 
-int shpchp_unconfigure_device(struct slot *p_slot)
+void shpchp_unconfigure_device(struct slot *p_slot)
 {
-       int rc = 0;
        struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
        struct pci_dev *dev, *temp;
        struct controller *ctrl = p_slot->ctrl;
@@ -83,6 +82,4 @@ int shpchp_unconfigure_device(struct slot *p_slot)
        }
 
        pci_unlock_rescan_remove();
-       return rc;
 }
-