pciehp: Remove unnecessary check in pciehp_ctrl.c

this was spotted by coverity (cid #819). We dereference p_slot
earlier in the function, and i found no way it could become NULL
anywhere.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index c206a3d..372c63e 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -797,8 +797,7 @@
 		p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
 	}
 
-	if (p_slot)
-		update_slot_info(p_slot);
+	update_slot_info(p_slot);
 
 	mutex_unlock(&p_slot->ctrl->crit_sect);
 	return rc;