4 files changed, 18 insertions, 15 deletions

diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 1c4ee6e77937..75049e765191 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -24,7 +24,6 @@
 #include <linux/fs.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/adb.h>
 #include <linux/cuda.h>
 #include <linux/pmu.h>
@@ -55,6 +54,7 @@ extern struct adb_driver adb_iop_driver;
 extern struct adb_driver via_pmu_driver;
 extern struct adb_driver macio_adb_driver;
 
+static DEFINE_MUTEX(adb_mutex);
 static struct adb_driver *adb_driver_list[] = {
 #ifdef CONFIG_ADB_MACII
 	&via_macii_driver,
@@ -83,7 +83,7 @@ static struct adb_driver *adb_controller;
 BLOCKING_NOTIFIER_HEAD(adb_client_list);
 static int adb_got_sleep;
 static int adb_inited;
-static DECLARE_MUTEX(adb_probe_mutex);
+static DEFINE_SEMAPHORE(adb_probe_mutex);
 static int sleepy_trackpad;
 static int autopoll_devs;
 int __adb_probe_sync;
@@ -647,7 +647,7 @@ static int adb_open(struct inode *inode, struct file *file)
 	struct adbdev_state *state;
 	int ret = 0;
 
-	lock_kernel();
+	mutex_lock(&adb_mutex);
 	if (iminor(inode) > 0 || adb_controller == NULL) {
 		ret = -ENXIO;
 		goto out;
@@ -665,7 +665,7 @@ static int adb_open(struct inode *inode, struct file *file)
 	state->inuse = 1;
 
 out:
-	unlock_kernel();
+	mutex_unlock(&adb_mutex);
 	return ret;
 }
 
@@ -674,7 +674,7 @@ static int adb_release(struct inode *inode, struct file *file)
 	struct adbdev_state *state = file->private_data;
 	unsigned long flags;
 
-	lock_kernel();
+	mutex_lock(&adb_mutex);
 	if (state) {
 		file->private_data = NULL;
 		spin_lock_irqsave(&state->lock, flags);
@@ -687,7 +687,7 @@ static int adb_release(struct inode *inode, struct file *file)
 			spin_unlock_irqrestore(&state->lock, flags);
 		}
 	}
-	unlock_kernel();
+	mutex_unlock(&adb_mutex);
 	return 0;
 }
 
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index e58c3d33e035..290cb325a94c 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -19,7 +19,6 @@
  *    the userland interface
  */
 
-#include <linux/smp_lock.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
@@ -97,6 +96,7 @@ struct smu_device {
  * I don't think there will ever be more than one SMU, so
  * for now, just hard code that
  */
+static DEFINE_MUTEX(smu_mutex);
 static struct smu_device	*smu;
 static DEFINE_MUTEX(smu_part_access);
 static int smu_irq_inited;
@@ -1095,12 +1095,12 @@ static int smu_open(struct inode *inode, struct file *file)
 	pp->mode = smu_file_commands;
 	init_waitqueue_head(&pp->wait);
 
-	lock_kernel();
+	mutex_lock(&smu_mutex);
 	spin_lock_irqsave(&smu_clist_lock, flags);
 	list_add(&pp->list, &smu_clist);
 	spin_unlock_irqrestore(&smu_clist_lock, flags);
 	file->private_data = pp;
-	unlock_kernel();
+	mutex_unlock(&smu_mutex);
 
 	return 0;
 }
diff --git a/drivers/macintosh/via-pmu-led.c b/drivers/macintosh/via-pmu-led.c
index d242976bcfe7..19c371809d77 100644
--- a/drivers/macintosh/via-pmu-led.c
+++ b/drivers/macintosh/via-pmu-led.c
@@ -92,8 +92,10 @@ static int __init via_pmu_led_init(void)
 	if (dt == NULL)
 		return -ENODEV;
 	model = of_get_property(dt, "model", NULL);
-	if (model == NULL)
+	if (model == NULL) {
+		of_node_put(dt);
 		return -ENODEV;
+	}
 	if (strncmp(model, "PowerBook", strlen("PowerBook")) != 0 &&
 	    strncmp(model, "iBook", strlen("iBook")) != 0 &&
 	    strcmp(model, "PowerMac7,2") != 0 &&
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 44d171cc2252..cd29c8248386 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -18,7 +18,7 @@
  *
  */
 #include <stdarg.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
@@ -73,6 +73,7 @@
 /* How many iterations between battery polls */
 #define BATTERY_POLLING_COUNT	2
 
+static DEFINE_MUTEX(pmu_info_proc_mutex);
 static volatile unsigned char __iomem *via;
 
 /* VIA registers - spaced 0x200 bytes apart */
@@ -2078,7 +2079,7 @@ pmu_open(struct inode *inode, struct file *file)
 	pp->rb_get = pp->rb_put = 0;
 	spin_lock_init(&pp->lock);
 	init_waitqueue_head(&pp->wait);
-	lock_kernel();
+	mutex_lock(&pmu_info_proc_mutex);
 	spin_lock_irqsave(&all_pvt_lock, flags);
 #if defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT)
 	pp->backlight_locker = 0;
@@ -2086,7 +2087,7 @@ pmu_open(struct inode *inode, struct file *file)
 	list_add(&pp->list, &all_pmu_pvt);
 	spin_unlock_irqrestore(&all_pvt_lock, flags);
 	file->private_data = pp;
-	unlock_kernel();
+	mutex_unlock(&pmu_info_proc_mutex);
 	return 0;
 }
 
@@ -2343,9 +2344,9 @@ static long pmu_unlocked_ioctl(struct file *filp,
 {
 	int ret;
 
-	lock_kernel();
+	mutex_lock(&pmu_info_proc_mutex);
 	ret = pmu_ioctl(filp, cmd, arg);
-	unlock_kernel();
+	mutex_unlock(&pmu_info_proc_mutex);
 
 	return ret;
 }