1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 2387e75da0fe..0b8b26beb163 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -750,7 +750,7 @@ static int hpc_power_on_slot(struct slot * slot)
 {
         struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u16 slot_cmd;
-        u16 slot_ctrl;
+        u16 slot_ctrl, slot_status;
 
         int retval = 0;
 
@@ -767,6 +767,14 @@ static int hpc_power_on_slot(struct slot * slot)
                 return -1;
         }
 
+        /* Clear sticky power-fault bit from previous power failures */
+        hp_register_read_word(php_ctlr->pci_dev,
+                        SLOT_STATUS(slot->ctrl->cap_base), slot_status);
+        slot_status &= PWR_FAULT_DETECTED;
+        if (slot_status)
+                hp_register_write_word(php_ctlr->pci_dev,
+                        SLOT_STATUS(slot->ctrl->cap_base), slot_status);
+
         retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl);
 
         if (retval) {