acpiphp: fix latch status
pci_hotplug.h says:
* @latch_status: if the latch (if any) is open or closed (1/0)
However, acpiphp returns opposite value.
This patch fixes this issue.
I tested this patch on my ia64 machine that has some apciphp based
hotplug slots.
Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index c44311a..16167b0 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -1807,8 +1807,8 @@
/*
- * latch closed: 1
- * latch open: 0
+ * latch open: 1
+ * latch closed: 0
*/
u8 acpiphp_get_latch_status(struct acpiphp_slot *slot)
{
@@ -1816,7 +1816,7 @@
sta = get_slot_status(slot);
- return (sta & ACPI_STA_SHOW_IN_UI) ? 1 : 0;
+ return (sta & ACPI_STA_SHOW_IN_UI) ? 0 : 1;
}
