1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 293603e1b7c3..6a91cfb0f688 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -37,6 +37,7 @@
 
 #include <linux/acpi.h>
 #include <linux/kobject.h>      /* for KOBJ_NAME_LEN */
+#include <linux/mutex.h>
 #include "pci_hotplug.h"
 
 #define dbg(format, arg...)                                     \
@@ -118,7 +119,7 @@ struct acpiphp_slot {
         struct acpiphp_bridge *bridge;  /* parent */
         struct list_head funcs;         /* one slot may have different
                                            objects (i.e. for each function) */
-        struct semaphore crit_sect;
+        struct mutex crit_sect;
 
         u32             id;             /* slot id (serial #) for hotplug core */
         u8              device;         /* pci device# */