From: rajesh.shah@intel.com Date: Tue, 1 Nov 2005 00:20:13 +0000 (-0800) Subject: [PATCH] pciehp: fix handling of power faults during hotplug X-Git-Tag: v2.6.15-rc1~33 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=8239def1b56e0c0c8e0fd3754a12df3d60a64ed7;p=~shefty%2Frdma-dev.git [PATCH] pciehp: fix handling of power faults during hotplug The current pciehp implementation reports a power-fail error even if the condition has cleared by the time the corresponding interrupt handling code gets a chance to run. This patch fixes this problem. Signed-off-by: Rajesh Shah Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 2d2539ba730..f2b9b7686f2 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -481,7 +481,6 @@ static int hpc_query_power_fault(struct slot * slot) u16 slot_status; u8 pwr_fault; int retval = 0; - u8 status; DBG_ENTER_ROUTINE @@ -493,15 +492,13 @@ static int hpc_query_power_fault(struct slot * slot) retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); if (retval) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s : Cannot check for power fault\n", __FUNCTION__); return retval; } pwr_fault = (u8)((slot_status & PWR_FAULT_DETECTED) >> 1); - status = (pwr_fault != 1) ? 1 : 0; DBG_LEAVE_ROUTINE - /* Note: Logic 0 => fault */ - return status; + return pwr_fault; } static int hpc_set_attention_status(struct slot *slot, u8 value)