[PATCH] PCI hotplug: convert semaphores to mutex

semaphore to mutex conversion.

the conversion was generated via scripts, and the result was validated
automatically via a script as well.

build tested with allyesconfig.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

13 files changed, 143 insertions, 137 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# */
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 509a5b3ae998..4e25d9c7cc39 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -46,7 +46,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/smp_lock.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include "../pci.h"
 #include "pci_hotplug.h"
@@ -188,7 +188,7 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
                 slot->device = device;
                 slot->sun = sun;
                 INIT_LIST_HEAD(&slot->funcs);
-                init_MUTEX(&slot->crit_sect);
+                mutex_init(&slot->crit_sect);
 
                 slot->next = bridge->slots;
                 bridge->slots = slot;
@@ -1401,7 +1401,7 @@ int acpiphp_enable_slot(struct acpiphp_slot *slot)
 {
         int retval;
 
-        down(&slot->crit_sect);
+        mutex_lock(&slot->crit_sect);
 
         /* wake up all functions */
         retval = power_on_slot(slot);
@@ -1413,7 +1413,7 @@ int acpiphp_enable_slot(struct acpiphp_slot *slot)
                 retval = enable_device(slot);
 
  err_exit:
-        up(&slot->crit_sect);
+        mutex_unlock(&slot->crit_sect);
         return retval;
 }
 
@@ -1424,7 +1424,7 @@ int acpiphp_disable_slot(struct acpiphp_slot *slot)
 {
         int retval = 0;
 
-        down(&slot->crit_sect);
+        mutex_lock(&slot->crit_sect);
 
         /* unconfigure all functions */
         retval = disable_device(slot);
@@ -1437,7 +1437,7 @@ int acpiphp_disable_slot(struct acpiphp_slot *slot)
                 goto err_exit;
 
  err_exit:
-        up(&slot->crit_sect);
+        mutex_unlock(&slot->crit_sect);
         return retval;
 }
 
diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h
index cb88404c89fe..c74e9e37e76b 100644
--- a/drivers/pci/hotplug/cpqphp.h
+++ b/drivers/pci/hotplug/cpqphp.h
@@ -32,6 +32,7 @@
 #include <linux/interrupt.h>
 #include <asm/io.h>             /* for read? and write? functions */
 #include <linux/delay.h>        /* for delays */
+#include <linux/mutex.h>
 
 #define MY_NAME "cpqphp"
 
@@ -286,7 +287,7 @@ struct event_info {
 struct controller {
         struct controller *next;
         u32 ctrl_int_comp;
-        struct semaphore crit_sect;     /* critical section semaphore */
+        struct mutex crit_sect;         /* critical section mutex */
         void __iomem *hpc_reg;          /* cookie for our pci controller location */
         struct pci_resource *mem_head;
         struct pci_resource *p_mem_head;
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index b3659ffccac9..8626901daeb8 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -599,7 +599,7 @@ cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func,
         hp_slot = func->device - ctrl->slot_device_offset;
 
         // Wait for exclusive access to hardware
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         if (status == 1) {
                 amber_LED_on (ctrl, hp_slot);
@@ -607,7 +607,7 @@ cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func,
                 amber_LED_off (ctrl, hp_slot);
         } else {
                 // Done with exclusive hardware access
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return(1);
         }
 
@@ -617,7 +617,7 @@ cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func,
         wait_for_ctrl_irq (ctrl);
 
         // Done with exclusive hardware access
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         return(0);
 }
@@ -1084,7 +1084,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
         dbg("bus device function rev: %d %d %d %d\n", ctrl->bus,
                 PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), ctrl->rev);
 
-        init_MUTEX(&ctrl->crit_sect);
+        mutex_init(&ctrl->crit_sect);
         init_waitqueue_head(&ctrl->queue);
 
         /* initialize our threads if they haven't already been started up */
@@ -1223,7 +1223,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         // turn off empty slots here unless command line option "ON" set
         // Wait for exclusive access to hardware
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         num_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F;
 
@@ -1270,12 +1270,12 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
         rc = init_SERR(ctrl);
         if (rc) {
                 err("init_SERR failed\n");
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 goto err_free_irq;
         }
 
         // Done with exclusive hardware access
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         cpqhp_create_debugfs_files(ctrl);
 
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index 771ed34b1819..72eb8e2d2065 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -1299,7 +1299,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                  **********************************/
                 rc = CARD_FUNCTIONING;
         } else {
-                down(&ctrl->crit_sect);
+                mutex_lock(&ctrl->crit_sect);
 
                 /* turn on board without attaching to the bus */
                 enable_slot_power (ctrl, hp_slot);
@@ -1333,12 +1333,12 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                 /* Wait for SOBS to be unset */
                 wait_for_ctrl_irq (ctrl);
 
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
 
                 if (rc)
                         return rc;
 
-                down(&ctrl->crit_sect);
+                mutex_lock(&ctrl->crit_sect);
 
                 slot_enable (ctrl, hp_slot);
                 green_LED_blink (ctrl, hp_slot);
@@ -1350,7 +1350,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                 /* Wait for SOBS to be unset */
                 wait_for_ctrl_irq (ctrl);
 
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
 
                 /* Wait for ~1 second because of hot plug spec */
                 long_delay(1*HZ);
@@ -1375,7 +1375,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                                  * called for the "base" bus/dev/func of an
                                  * adapter. */
 
-                                down(&ctrl->crit_sect);
+                                mutex_lock(&ctrl->crit_sect);
 
                                 amber_LED_on (ctrl, hp_slot);
                                 green_LED_off (ctrl, hp_slot);
@@ -1386,7 +1386,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                                 /* Wait for SOBS to be unset */
                                 wait_for_ctrl_irq (ctrl);
 
-                                up(&ctrl->crit_sect);
+                                mutex_unlock(&ctrl->crit_sect);
 
                                 if (rc)
                                         return rc;
@@ -1410,7 +1410,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                                  * called for the "base" bus/dev/func of an
                                  * adapter. */
 
-                                down(&ctrl->crit_sect);
+                                mutex_lock(&ctrl->crit_sect);
 
                                 amber_LED_on (ctrl, hp_slot);
                                 green_LED_off (ctrl, hp_slot);
@@ -1421,13 +1421,13 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                                 /* Wait for SOBS to be unset */
                                 wait_for_ctrl_irq (ctrl);
 
-                                up(&ctrl->crit_sect);
+                                mutex_unlock(&ctrl->crit_sect);
 
                                 return rc;
                         }
                         /* Done configuring so turn LED on full time */
 
-                        down(&ctrl->crit_sect);
+                        mutex_lock(&ctrl->crit_sect);
 
                         green_LED_on (ctrl, hp_slot);
 
@@ -1436,7 +1436,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                         /* Wait for SOBS to be unset */
                         wait_for_ctrl_irq (ctrl);
 
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         rc = 0;
                 } else {
                         /* Something is wrong
@@ -1445,7 +1445,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                          * in this case it will always be called for the "base"
                          * bus/dev/func of an adapter. */
 
-                        down(&ctrl->crit_sect);
+                        mutex_lock(&ctrl->crit_sect);
 
                         amber_LED_on (ctrl, hp_slot);
                         green_LED_off (ctrl, hp_slot);
@@ -1456,7 +1456,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
                         /* Wait for SOBS to be unset */
                         wait_for_ctrl_irq (ctrl);
 
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                 }
 
         }
@@ -1488,7 +1488,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
         dbg("%s: func->device, slot_offset, hp_slot = %d, %d ,%d\n",
             __FUNCTION__, func->device, ctrl->slot_device_offset, hp_slot);
 
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         /* turn on board without attaching to the bus */
         enable_slot_power(ctrl, hp_slot);
@@ -1522,7 +1522,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
         /* Wait for SOBS to be unset */
         wait_for_ctrl_irq(ctrl);
 
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         if (rc)
                 return rc;
@@ -1532,7 +1532,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
         /* turn on board and blink green LED */
 
         dbg("%s: before down\n", __FUNCTION__);
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
         dbg("%s: after down\n", __FUNCTION__);
 
         dbg("%s: before slot_enable\n", __FUNCTION__);
@@ -1553,7 +1553,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
         dbg("%s: after wait_for_ctrl_irq\n", __FUNCTION__);
 
         dbg("%s: before up\n", __FUNCTION__);
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
         dbg("%s: after up\n", __FUNCTION__);
 
         /* Wait for ~1 second because of hot plug spec */
@@ -1607,7 +1607,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
                 cpqhp_resource_sort_and_combine(&(ctrl->bus_head));
 
                 if (rc) {
-                        down(&ctrl->crit_sect);
+                        mutex_lock(&ctrl->crit_sect);
 
                         amber_LED_on (ctrl, hp_slot);
                         green_LED_off (ctrl, hp_slot);
@@ -1618,7 +1618,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
                         /* Wait for SOBS to be unset */
                         wait_for_ctrl_irq (ctrl);
 
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return rc;
                 } else {
                         cpqhp_save_slot_config(ctrl, func);
@@ -1640,7 +1640,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
                         }
                 } while (new_slot);
 
-                down(&ctrl->crit_sect);
+                mutex_lock(&ctrl->crit_sect);
 
                 green_LED_on (ctrl, hp_slot);
 
@@ -1649,9 +1649,9 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
                 /* Wait for SOBS to be unset */
                 wait_for_ctrl_irq (ctrl);
 
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
         } else {
-                down(&ctrl->crit_sect);
+                mutex_lock(&ctrl->crit_sect);
 
                 amber_LED_on (ctrl, hp_slot);
                 green_LED_off (ctrl, hp_slot);
@@ -1662,7 +1662,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
                 /* Wait for SOBS to be unset */
                 wait_for_ctrl_irq (ctrl);
 
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
 
                 return rc;
         }
@@ -1721,7 +1721,7 @@ static u32 remove_board(struct pci_func * func, u32 replace_flag, struct control
                 func->status = 0x01;
         func->configured = 0;
 
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         green_LED_off (ctrl, hp_slot);
         slot_disable (ctrl, hp_slot);
@@ -1736,7 +1736,7 @@ static u32 remove_board(struct pci_func * func, u32 replace_flag, struct control
         /* Wait for SOBS to be unset */
         wait_for_ctrl_irq (ctrl);
 
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         if (!replace_flag && ctrl->add_support) {
                 while (func) {
@@ -1899,7 +1899,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         dbg("button cancel\n");
                                         del_timer(&p_slot->task_event);
 
-                                        down(&ctrl->crit_sect);
+                                        mutex_lock(&ctrl->crit_sect);
 
                                         if (p_slot->state == BLINKINGOFF_STATE) {
                                                 /* slot is on */
@@ -1922,7 +1922,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         /* Wait for SOBS to be unset */
                                         wait_for_ctrl_irq (ctrl);
 
-                                        up(&ctrl->crit_sect);
+                                        mutex_unlock(&ctrl->crit_sect);
                                 }
                                 /*** button Released (No action on press...) */
                                 else if (ctrl->event_queue[loop].event_type == INT_BUTTON_RELEASE) {
@@ -1937,7 +1937,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                                 p_slot->state = BLINKINGON_STATE;
                                                 info(msg_button_on, p_slot->number);
                                         }
-                                        down(&ctrl->crit_sect);
+                                        mutex_lock(&ctrl->crit_sect);
                                         
                                         dbg("blink green LED and turn off amber\n");
                                         
@@ -1949,7 +1949,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         /* Wait for SOBS to be unset */
                                         wait_for_ctrl_irq (ctrl);
 
-                                        up(&ctrl->crit_sect);
+                                        mutex_unlock(&ctrl->crit_sect);
                                         init_timer(&p_slot->task_event);
                                         p_slot->hp_slot = hp_slot;
                                         p_slot->ctrl = ctrl;
diff --git a/drivers/pci/hotplug/ibmphp_hpc.c b/drivers/pci/hotplug/ibmphp_hpc.c
index 1a3eb8d3d4cb..d680bb472c7b 100644
--- a/drivers/pci/hotplug/ibmphp_hpc.c
+++ b/drivers/pci/hotplug/ibmphp_hpc.c
@@ -34,6 +34,8 @@
 #include <linux/pci.h>
 #include <linux/smp_lock.h>
 #include <linux/init.h>
+#include <linux/mutex.h>
+
 #include "ibmphp.h"
 
 static int to_debug = FALSE;
@@ -101,7 +103,7 @@ static int to_debug = FALSE;
 //----------------------------------------------------------------------------
 static int ibmphp_shutdown;
 static int tid_poll;
-static struct semaphore sem_hpcaccess;  // lock access to HPC
+static struct mutex sem_hpcaccess;      // lock access to HPC
 static struct semaphore semOperations;  // lock all operations and
                                         // access to data structures
 static struct semaphore sem_exit;       // make sure polling thread goes away
@@ -131,7 +133,7 @@ void __init ibmphp_hpc_initvars (void)
 {
         debug ("%s - Entry\n", __FUNCTION__);
 
-        init_MUTEX (&sem_hpcaccess);
+        mutex_init(&sem_hpcaccess);
         init_MUTEX (&semOperations);
         init_MUTEX_LOCKED (&sem_exit);
         to_debug = FALSE;
@@ -778,7 +780,7 @@ int ibmphp_hpc_writeslot (struct slot * pslot, u8 cmd)
 *---------------------------------------------------------------------*/
 static void get_hpc_access (void)
 {
-        down (&sem_hpcaccess);
+        mutex_lock(&sem_hpcaccess);
 }
 
 /*----------------------------------------------------------------------
@@ -786,7 +788,7 @@ static void get_hpc_access (void)
 *---------------------------------------------------------------------*/
 void free_hpc_access (void)
 {
-        up (&sem_hpcaccess);
+        mutex_unlock(&sem_hpcaccess);
 }
 
 /*----------------------------------------------------------------------
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 0aac6a61337d..e0adf4bc89e8 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -34,6 +34,7 @@
 #include <linux/delay.h>
 #include <linux/sched.h>                /* signal_pending() */
 #include <linux/pcieport_if.h>
+#include <linux/mutex.h>
 #include "pci_hotplug.h"
 
 #define MY_NAME "pciehp"
@@ -96,7 +97,7 @@ struct php_ctlr_state_s {
 #define MAX_EVENTS              10
 struct controller {
         struct controller *next;
-        struct semaphore crit_sect;     /* critical section semaphore */
+        struct mutex crit_sect;         /* critical section mutex */
         struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */
         int num_slots;                  /* Number of slots on ctlr */
         int slot_num_inc;               /* 1 or -1 */
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 4fb569018a24..1e8506e0fd87 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -439,7 +439,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
         }
 
         /* Wait for exclusive access to hardware */
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */
         
@@ -447,7 +447,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
                 rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/
                 if (rc) {
                         /* Done with exclusive hardware access */
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         goto err_out_free_ctrl_slot;
                 } else
                         /* Wait for the command to complete */
@@ -455,7 +455,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
         }
 
         /* Done with exclusive hardware access */
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         return 0;
 
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 83c4b865718a..33d198768356 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -229,13 +229,13 @@ u8 pciehp_handle_power_fault(u8 hp_slot, void *inst_id)
 static void set_slot_off(struct controller *ctrl, struct slot * pslot)
 {
         /* Wait for exclusive access to hardware */
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         /* turn off slot, turn on Amber LED, turn off Green LED if supported*/
         if (POWER_CTRL(ctrl->ctrlcap)) {
                 if (pslot->hpc_ops->power_off_slot(pslot)) {   
                         err("%s: Issue of Slot Power Off command failed\n", __FUNCTION__);
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return;
                 }
                 wait_for_ctrl_irq (ctrl);
@@ -249,14 +249,14 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
         if (ATTN_LED(ctrl->ctrlcap)) { 
                 if (pslot->hpc_ops->set_attention_status(pslot, 1)) {   
                         err("%s: Issue of Set Attention Led command failed\n", __FUNCTION__);
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return;
                 }
                 wait_for_ctrl_irq (ctrl);
         }
 
         /* Done with exclusive hardware access */
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 }
 
 /**
@@ -279,13 +279,13 @@ static int board_added(struct slot *p_slot)
                         ctrl->slot_device_offset, hp_slot);
 
         /* Wait for exclusive access to hardware */
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         if (POWER_CTRL(ctrl->ctrlcap)) {
                 /* Power on slot */
                 rc = p_slot->hpc_ops->power_on_slot(p_slot);
                 if (rc) {
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return -1;
                 }
 
@@ -301,7 +301,7 @@ static int board_added(struct slot *p_slot)
         }
 
         /* Done with exclusive hardware access */
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         /* Wait for ~1 second */
         wait_for_ctrl_irq (ctrl);
@@ -335,7 +335,7 @@ static int board_added(struct slot *p_slot)
                 pci_fixup_device(pci_fixup_final, ctrl->pci_dev);
         if (PWR_LED(ctrl->ctrlcap)) {
                 /* Wait for exclusive access to hardware */
-                down(&ctrl->crit_sect);
+                mutex_lock(&ctrl->crit_sect);
 
                 p_slot->hpc_ops->green_led_on(p_slot);
   
@@ -343,7 +343,7 @@ static int board_added(struct slot *p_slot)
                 wait_for_ctrl_irq (ctrl);
         
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
         }
         return 0;
 
@@ -375,14 +375,14 @@ static int remove_board(struct slot *p_slot)
         dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot);
 
         /* Wait for exclusive access to hardware */
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         if (POWER_CTRL(ctrl->ctrlcap)) {
                 /* power off slot */
                 rc = p_slot->hpc_ops->power_off_slot(p_slot);
                 if (rc) {
                         err("%s: Issue of Slot Disable command failed\n", __FUNCTION__);
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return rc;
                 }
                 /* Wait for the command to complete */
@@ -398,7 +398,7 @@ static int remove_board(struct slot *p_slot)
         }
 
         /* Done with exclusive hardware access */
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         return 0;
 }
@@ -445,7 +445,7 @@ static void pciehp_pushbutton_thread(unsigned long slot)
 
                 if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) {
                         /* Wait for exclusive access to hardware */
-                        down(&p_slot->ctrl->crit_sect);
+                        mutex_lock(&p_slot->ctrl->crit_sect);
 
                         p_slot->hpc_ops->green_led_off(p_slot);
 
@@ -453,7 +453,7 @@ static void pciehp_pushbutton_thread(unsigned long slot)
                         wait_for_ctrl_irq (p_slot->ctrl);
 
                         /* Done with exclusive hardware access */
-                        up(&p_slot->ctrl->crit_sect);
+                        mutex_unlock(&p_slot->ctrl->crit_sect);
                 }
                 p_slot->state = STATIC_STATE;
         }
@@ -495,7 +495,7 @@ static void pciehp_surprise_rm_thread(unsigned long slot)
 
                 if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) {
                         /* Wait for exclusive access to hardware */
-                        down(&p_slot->ctrl->crit_sect);
+                        mutex_lock(&p_slot->ctrl->crit_sect);
 
                         p_slot->hpc_ops->green_led_off(p_slot);
 
@@ -503,7 +503,7 @@ static void pciehp_surprise_rm_thread(unsigned long slot)
                         wait_for_ctrl_irq (p_slot->ctrl);
 
                         /* Done with exclusive hardware access */
-                        up(&p_slot->ctrl->crit_sect);
+                        mutex_unlock(&p_slot->ctrl->crit_sect);
                 }
                 p_slot->state = STATIC_STATE;
         }
@@ -616,7 +616,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         switch (p_slot->state) {
                                         case BLINKINGOFF_STATE:
                                                 /* Wait for exclusive access to hardware */
-                                                down(&ctrl->crit_sect);
+                                                mutex_lock(&ctrl->crit_sect);
                                                 
                                                 if (PWR_LED(ctrl->ctrlcap)) {
                                                         p_slot->hpc_ops->green_led_on(p_slot);
@@ -630,11 +630,11 @@ static void interrupt_event_handler(struct controller *ctrl)
                                                         wait_for_ctrl_irq (ctrl);
                                                 }
                                                 /* Done with exclusive hardware access */
-                                                up(&ctrl->crit_sect);
+                                                mutex_unlock(&ctrl->crit_sect);
                                                 break;
                                         case BLINKINGON_STATE:
                                                 /* Wait for exclusive access to hardware */
-                                                down(&ctrl->crit_sect);
+                                                mutex_lock(&ctrl->crit_sect);
 
                                                 if (PWR_LED(ctrl->ctrlcap)) {
                                                         p_slot->hpc_ops->green_led_off(p_slot);
@@ -647,7 +647,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                                         wait_for_ctrl_irq (ctrl);
                                                 }
                                                 /* Done with exclusive hardware access */
-                                                up(&ctrl->crit_sect);
+                                                mutex_unlock(&ctrl->crit_sect);
 
                                                 break;
                                         default:
@@ -676,7 +676,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                                 }
 
                                                 /* Wait for exclusive access to hardware */
-                                                down(&ctrl->crit_sect);
+                                                mutex_lock(&ctrl->crit_sect);
 
                                                 /* blink green LED and turn off amber */
                                                 if (PWR_LED(ctrl->ctrlcap)) {
@@ -693,7 +693,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                                 }
 
                                                 /* Done with exclusive hardware access */
-                                                up(&ctrl->crit_sect);
+                                                mutex_unlock(&ctrl->crit_sect);
 
                                                 init_timer(&p_slot->task_event);
                                                 p_slot->task_event.expires = jiffies + 5 * HZ;   /* 5 second delay */
@@ -708,7 +708,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         if (POWER_CTRL(ctrl->ctrlcap)) {
                                                 dbg("power fault\n");
                                                 /* Wait for exclusive access to hardware */
-                                                down(&ctrl->crit_sect);
+                                                mutex_lock(&ctrl->crit_sect);
 
                                                 if (ATTN_LED(ctrl->ctrlcap)) {
                                                         p_slot->hpc_ops->set_attention_status(p_slot, 1);
@@ -721,7 +721,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                                 }
 
                                                 /* Done with exclusive hardware access */
-                                                up(&ctrl->crit_sect);
+                                                mutex_unlock(&ctrl->crit_sect);
                                         }
                                 }
                                 /***********SURPRISE REMOVAL********************/
@@ -756,19 +756,19 @@ int pciehp_enable_slot(struct slot *p_slot)
         int rc;
 
         /* Check to see if (latch closed, card present, power off) */
-        down(&p_slot->ctrl->crit_sect);
+        mutex_lock(&p_slot->ctrl->crit_sect);
 
         rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
         if (rc || !getstatus) {
                 info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number);
-                up(&p_slot->ctrl->crit_sect);
+                mutex_unlock(&p_slot->ctrl->crit_sect);
                 return 1;
         }
         if (MRL_SENS(p_slot->ctrl->ctrlcap)) {  
                 rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
                 if (rc || getstatus) {
                         info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number);
-                        up(&p_slot->ctrl->crit_sect);
+                        mutex_unlock(&p_slot->ctrl->crit_sect);
                         return 1;
                 }
         }
@@ -777,11 +777,11 @@ int pciehp_enable_slot(struct slot *p_slot)
                 rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
                 if (rc || getstatus) {
                         info("%s: already enabled on slot(%x)\n", __FUNCTION__, p_slot->number);
-                        up(&p_slot->ctrl->crit_sect);
+                        mutex_unlock(&p_slot->ctrl->crit_sect);
                         return 1;
                 }
         }
-        up(&p_slot->ctrl->crit_sect);
+        mutex_unlock(&p_slot->ctrl->crit_sect);
 
         p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
 
@@ -806,13 +806,13 @@ int pciehp_disable_slot(struct slot *p_slot)
                 return 1;
 
         /* Check to see if (latch closed, card present, power on) */
-        down(&p_slot->ctrl->crit_sect);
+        mutex_lock(&p_slot->ctrl->crit_sect);
 
         if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) {       
                 ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
                 if (ret || !getstatus) {
                         info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number);
-                        up(&p_slot->ctrl->crit_sect);
+                        mutex_unlock(&p_slot->ctrl->crit_sect);
                         return 1;
                 }
         }
@@ -821,7 +821,7 @@ int pciehp_disable_slot(struct slot *p_slot)
                 ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
                 if (ret || getstatus) {
                         info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number);
-                        up(&p_slot->ctrl->crit_sect);
+                        mutex_unlock(&p_slot->ctrl->crit_sect);
                         return 1;
                 }
         }
@@ -830,12 +830,12 @@ int pciehp_disable_slot(struct slot *p_slot)
                 ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
                 if (ret || !getstatus) {
                         info("%s: already disabled slot(%x)\n", __FUNCTION__, p_slot->number);
-                        up(&p_slot->ctrl->crit_sect);
+                        mutex_unlock(&p_slot->ctrl->crit_sect);
                         return 1;
                 }
         }
 
-        up(&p_slot->ctrl->crit_sect);
+        mutex_unlock(&p_slot->ctrl->crit_sect);
 
         ret = remove_board(p_slot);
         update_slot_info(p_slot);
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 77e530321de2..2427b0862cbf 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -1334,7 +1334,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev)
         if (pci_enable_device(pdev))
                 goto abort_free_ctlr;
         
-        init_MUTEX(&ctrl->crit_sect);
+        mutex_init(&ctrl->crit_sect);
         /* setup wait queue */
         init_waitqueue_head(&ctrl->queue);
 
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index 7d6f521d02ea..5a22a43cc387 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -33,6 +33,7 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/sched.h>        /* signal_pending(), struct timer_list */
+#include <linux/mutex.h>
 
 #include "pci_hotplug.h"
 
@@ -79,7 +80,7 @@ struct event_info {
 
 struct controller {
         struct controller *next;
-        struct semaphore crit_sect;     /* critical section semaphore */
+        struct mutex crit_sect;         /* critical section mutex */
         struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */
         int num_slots;                  /* Number of slots on ctlr */
         int slot_num_inc;               /* 1 or -1 */
diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
index 643252d9bf3b..65e69252e2f9 100644
--- a/drivers/pci/hotplug/shpchp_ctrl.c
+++ b/drivers/pci/hotplug/shpchp_ctrl.c
@@ -242,10 +242,10 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,
         int rc = 0;
 
         dbg("%s: change to speed %d\n", __FUNCTION__, speed);
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
         if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed))) {
                 err("%s: Issue of set bus speed mode command failed\n", __FUNCTION__);
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return WRONG_BUS_FREQUENCY;
         }
                 
@@ -253,10 +253,10 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,
                 err("%s: Can't set bus speed/mode in the case of adapter & bus mismatch\n",
                           __FUNCTION__);
                 err("%s: Error code (%d)\n", __FUNCTION__, rc);
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return WRONG_BUS_FREQUENCY;
         }
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
         return rc;
 }
 
@@ -319,14 +319,14 @@ static int board_added(struct slot *p_slot)
                         ctrl->slot_device_offset, hp_slot);
 
         /* Wait for exclusive access to hardware */
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         /* Power on slot without connecting to bus */
         rc = p_slot->hpc_ops->power_on_slot(p_slot);
         if (rc) {
                 err("%s: Failed to power on slot\n", __FUNCTION__);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return -1;
         }
         
@@ -334,7 +334,7 @@ static int board_added(struct slot *p_slot)
         if (rc) {
                 err("%s: Failed to power on slot, error code(%d)\n", __FUNCTION__, rc);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return -1;
         }
 
@@ -345,7 +345,7 @@ static int board_added(struct slot *p_slot)
                 
                 if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz))) {
                         err("%s: Issue of set bus speed mode command failed\n", __FUNCTION__);
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return WRONG_BUS_FREQUENCY;
                 }
                 
@@ -353,19 +353,19 @@ static int board_added(struct slot *p_slot)
                         err("%s: Can't set bus speed/mode in the case of adapter & bus mismatch\n",
                                   __FUNCTION__);
                         err("%s: Error code (%d)\n", __FUNCTION__, rc);
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return WRONG_BUS_FREQUENCY;
                 }
                 /* turn on board, blink green LED, turn off Amber LED */
                 if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {
                         err("%s: Issue of Slot Enable command failed\n", __FUNCTION__);
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return rc;
                 }
 
                 if ((rc = p_slot->hpc_ops->check_cmd_status(ctrl))) {
                         err("%s: Failed to enable slot, error code(%d)\n", __FUNCTION__, rc);
-                        up(&ctrl->crit_sect);
+                        mutex_unlock(&ctrl->crit_sect);
                         return rc;  
                 }
         }
@@ -380,7 +380,7 @@ static int board_added(struct slot *p_slot)
         if (rc  || adapter_speed == PCI_SPEED_UNKNOWN) {
                 err("%s: Can't get adapter speed or bus mode mismatch\n", __FUNCTION__);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return WRONG_BUS_FREQUENCY;
         }
 
@@ -388,7 +388,7 @@ static int board_added(struct slot *p_slot)
         if (rc || bus_speed == PCI_SPEED_UNKNOWN) {
                 err("%s: Can't get bus operation speed\n", __FUNCTION__);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return WRONG_BUS_FREQUENCY;
         }
 
@@ -399,7 +399,7 @@ static int board_added(struct slot *p_slot)
         }
 
         /* Done with exclusive hardware access */
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         if ((rc  = p_slot->hpc_ops->get_prog_int(p_slot, &pi))) {
                 err("%s: Can't get controller programming interface, set it to 1\n", __FUNCTION__);
@@ -481,21 +481,21 @@ static int board_added(struct slot *p_slot)
                                 return rc;
         }
 
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
         /* turn on board, blink green LED, turn off Amber LED */
         if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {
                 err("%s: Issue of Slot Enable command failed\n", __FUNCTION__);
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return rc;
         }
 
         if ((rc = p_slot->hpc_ops->check_cmd_status(ctrl))) {
                 err("%s: Failed to enable slot, error code(%d)\n", __FUNCTION__, rc);
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return rc;  
         }
 
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         /* Wait for ~1 second */
         wait_for_ctrl_irq (ctrl);
@@ -521,25 +521,25 @@ static int board_added(struct slot *p_slot)
         p_slot->pwr_save = 1;
 
         /* Wait for exclusive access to hardware */
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         p_slot->hpc_ops->green_led_on(p_slot);
 
         /* Done with exclusive hardware access */
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         return 0;
 
 err_exit:
         /* Wait for exclusive access to hardware */
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         /* turn off slot, turn on Amber LED, turn off Green LED */
         rc = p_slot->hpc_ops->slot_disable(p_slot);
         if (rc) {
                 err("%s: Issue of Slot Disable command failed\n", __FUNCTION__);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return rc;
         }
 
@@ -547,12 +547,12 @@ err_exit:
         if (rc) {
                 err("%s: Failed to disable slot, error code(%d)\n", __FUNCTION__, rc);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return rc;
         }
 
         /* Done with exclusive hardware access */
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         return(rc);
 }
@@ -581,14 +581,14 @@ static int remove_board(struct slot *p_slot)
                 p_slot->status = 0x01;
 
         /* Wait for exclusive access to hardware */
-        down(&ctrl->crit_sect);
+        mutex_lock(&ctrl->crit_sect);
 
         /* turn off slot, turn on Amber LED, turn off Green LED */
         rc = p_slot->hpc_ops->slot_disable(p_slot);
         if (rc) {
                 err("%s: Issue of Slot Disable command failed\n", __FUNCTION__);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return rc;
         }
 
@@ -596,7 +596,7 @@ static int remove_board(struct slot *p_slot)
         if (rc) {
                 err("%s: Failed to disable slot, error code(%d)\n", __FUNCTION__, rc);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return rc;  
         }
         
@@ -604,12 +604,12 @@ static int remove_board(struct slot *p_slot)
         if (rc) {
                 err("%s: Issue of Set Attention command failed\n", __FUNCTION__);
                 /* Done with exclusive hardware access */
-                up(&ctrl->crit_sect);
+                mutex_unlock(&ctrl->crit_sect);
                 return rc;
         }
 
         /* Done with exclusive hardware access */
-        up(&ctrl->crit_sect);
+        mutex_unlock(&ctrl->crit_sect);
 
         p_slot->pwr_save = 0;
         p_slot->is_a_board = 0;
@@ -656,12 +656,12 @@ static void shpchp_pushbutton_thread (unsigned long slot)
 
                 if (shpchp_enable_slot(p_slot)) {
                         /* Wait for exclusive access to hardware */
-                        down(&p_slot->ctrl->crit_sect);
+                        mutex_lock(&p_slot->ctrl->crit_sect);
 
                         p_slot->hpc_ops->green_led_off(p_slot);
 
                         /* Done with exclusive hardware access */
-                        up(&p_slot->ctrl->crit_sect);
+                        mutex_unlock(&p_slot->ctrl->crit_sect);
                 }
                 p_slot->state = STATIC_STATE;
         }
@@ -768,25 +768,25 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         switch (p_slot->state) {
                                         case BLINKINGOFF_STATE:
                                                 /* Wait for exclusive access to hardware */
-                                                down(&ctrl->crit_sect);
+                                                mutex_lock(&ctrl->crit_sect);
 
                                                 p_slot->hpc_ops->green_led_on(p_slot);
 
                                                 p_slot->hpc_ops->set_attention_status(p_slot, 0);
 
                                                 /* Done with exclusive hardware access */
-                                                up(&ctrl->crit_sect);
+                                                mutex_unlock(&ctrl->crit_sect);
                                                 break;
                                         case BLINKINGON_STATE:
                                                 /* Wait for exclusive access to hardware */
-                                                down(&ctrl->crit_sect);
+                                                mutex_lock(&ctrl->crit_sect);
 
                                                 p_slot->hpc_ops->green_led_off(p_slot);
 
                                                 p_slot->hpc_ops->set_attention_status(p_slot, 0);
 
                                                 /* Done with exclusive hardware access */
-                                                up(&ctrl->crit_sect);
+                                                mutex_unlock(&ctrl->crit_sect);
 
                                                 break;
                                         default:
@@ -813,7 +813,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         }
 
                                         /* Wait for exclusive access to hardware */
-                                        down(&ctrl->crit_sect);
+                                        mutex_lock(&ctrl->crit_sect);
 
                                         /* blink green LED and turn off amber */
                                         p_slot->hpc_ops->green_led_blink(p_slot);
@@ -821,7 +821,7 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         p_slot->hpc_ops->set_attention_status(p_slot, 0);
 
                                         /* Done with exclusive hardware access */
-                                        up(&ctrl->crit_sect);
+                                        mutex_unlock(&ctrl->crit_sect);
 
                                         init_timer(&p_slot->task_event);
                                         p_slot->task_event.expires = jiffies + 5 * HZ;   /* 5 second delay */
@@ -834,14 +834,14 @@ static void interrupt_event_handler(struct controller *ctrl)
                                         /***********POWER FAULT********************/
                                         dbg("%s: power fault\n", __FUNCTION__);
                                         /* Wait for exclusive access to hardware */
-                                        down(&ctrl->crit_sect);
+                                        mutex_lock(&ctrl->crit_sect);
 
                                         p_slot->hpc_ops->set_attention_status(p_slot, 1);
                                         
                                         p_slot->hpc_ops->green_led_off(p_slot);
 
                                         /* Done with exclusive hardware access */
-                                        up(&ctrl->crit_sect);
+                                        mutex_unlock(&ctrl->crit_sect);
                                 } else {
                                         /* refresh notification */
                                         if (p_slot)
@@ -865,26 +865,26 @@ int shpchp_enable_slot (struct slot *p_slot)
         int rc;
 
         /* Check to see if (latch closed, card present, power off) */
-        down(&p_slot->ctrl->crit_sect);
+        mutex_lock(&p_slot->ctrl->crit_sect);
         rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
         if (rc || !getstatus) {
                 info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number);
-                up(&p_slot->ctrl->crit_sect);
+                mutex_unlock(&p_slot->ctrl->crit_sect);
                 return -ENODEV;
         }
         rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
         if (rc || getstatus) {
                 info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number);
-                up(&p_slot->ctrl->crit_sect);
+                mutex_unlock(&p_slot->ctrl->crit_sect);
                 return -ENODEV;
         }
         rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
         if (rc || getstatus) {
                 info("%s: already enabled on slot(%x)\n", __FUNCTION__, p_slot->number);
-                up(&p_slot->ctrl->crit_sect);
+                mutex_unlock(&p_slot->ctrl->crit_sect);
                 return -ENODEV;
         }
-        up(&p_slot->ctrl->crit_sect);
+        mutex_unlock(&p_slot->ctrl->crit_sect);
 
         p_slot->is_a_board = 1;
 
@@ -925,27 +925,27 @@ int shpchp_disable_slot (struct slot *p_slot)
                 return -ENODEV;
 
         /* Check to see if (latch closed, card present, power on) */
-        down(&p_slot->ctrl->crit_sect);
+        mutex_lock(&p_slot->ctrl->crit_sect);
 
         ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
         if (ret || !getstatus) {
                 info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number);
-                up(&p_slot->ctrl->crit_sect);
+                mutex_unlock(&p_slot->ctrl->crit_sect);
                 return -ENODEV;
         }
         ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
         if (ret || getstatus) {
                 info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number);
-                up(&p_slot->ctrl->crit_sect);
+                mutex_unlock(&p_slot->ctrl->crit_sect);
                 return -ENODEV;
         }
         ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
         if (ret || !getstatus) {
                 info("%s: already disabled slot(%x)\n", __FUNCTION__, p_slot->number);
-                up(&p_slot->ctrl->crit_sect);
+                mutex_unlock(&p_slot->ctrl->crit_sect);
                 return -ENODEV;
         }
-        up(&p_slot->ctrl->crit_sect);
+        mutex_unlock(&p_slot->ctrl->crit_sect);
 
         ret = remove_board(p_slot);
         update_slot_info(p_slot);
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index b4226ff3a854..ae81427e42b1 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -1454,7 +1454,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
         }
         dbg("%s: php_ctlr->creg %p\n", __FUNCTION__, php_ctlr->creg);
 
-        init_MUTEX(&ctrl->crit_sect);
+        mutex_init(&ctrl->crit_sect);
         /* Setup wait queue */
         init_waitqueue_head(&ctrl->queue);