PCI: pciehp: Drop unnecessary NULL pointer check

pciehp_disable_slot() checks if the ctrl attribute of the slot is NULL
and bails out if so.  However the function is not called prior to the
attribute being set in pcie_init_slot(), and pcie_init_slot() is not
called if ctrl is NULL.  So the check is unnecessary.  Drop it.

It has been present ever since the driver was introduced in 2004, but it
was already unnecessary back then:
https://git.kernel.org/tglx/history/c/c16b4b14d980

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index c684faa43387174a3a4ed89d49b6eb8f6eb899ee..4a4639b7a479165c858db4f97c34431746369efe 100644 (file)
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -412,9 +412,6 @@ int pciehp_disable_slot(struct slot *p_slot)
        u8 getstatus = 0;
        struct controller *ctrl = p_slot->ctrl;
 
-       if (!p_slot->ctrl)
-               return 1;
-
        if (POWER_CTRL(p_slot->ctrl)) {
                pciehp_get_power_status(p_slot, &getstatus);
                if (!getstatus) {