1 files changed, 6 insertions, 7 deletions

diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index e58c3d33e035..116a49ce74b2 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;
@@ -645,8 +645,7 @@ static void smu_expose_childs(struct work_struct *unused)
 
 static DECLARE_WORK(smu_expose_childs_work, smu_expose_childs);
 
-static int smu_platform_probe(struct platform_device* dev,
-                              const struct of_device_id *match)
+static int smu_platform_probe(struct platform_device* dev)
 {
         if (!smu)
                 return -ENODEV;
@@ -669,7 +668,7 @@ static const struct of_device_id smu_platform_match[] =
         {},
 };
 
-static struct of_platform_driver smu_of_platform_driver =
+static struct platform_driver smu_of_platform_driver =
 {
         .driver = {
                 .name = "smu",
@@ -689,7 +688,7 @@ static int __init smu_init_sysfs(void)
          * I'm a bit too far from figuring out how that works with those
          * new chipsets, but that will come back and bite us
          */
-        of_register_platform_driver(&smu_of_platform_driver);
+        platform_driver_register(&smu_of_platform_driver);
         return 0;
 }
 
@@ -1095,12 +1094,12 @@ 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;
 }