3 files changed, 11 insertions, 3 deletions

diff --git a/drivers/macintosh/ams/ams-core.c b/drivers/macintosh/ams/ams-core.c
index 2ad62c339cd2..399beb1638d1 100644
--- a/drivers/macintosh/ams/ams-core.c
+++ b/drivers/macintosh/ams/ams-core.c
@@ -226,7 +226,7 @@ void ams_sensor_detach(void)
          * We do this after ams_info.exit(), because an interrupt might
          * have arrived before disabling them.
          */
-        flush_scheduled_work();
+        flush_work_sync(&ams_info.worker);
 
         /* Remove device */
         of_device_unregister(ams_info.of_dev);
diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
index 067f9962f499..6a82388505f0 100644
--- a/drivers/macintosh/mac_hid.c
+++ b/drivers/macintosh/mac_hid.c
@@ -23,6 +23,8 @@ static int mouse_button3_keycode = KEY_RIGHTALT;	/* right option key */
 
 static struct input_dev *mac_hid_emumouse_dev;
 
+static DEFINE_MUTEX(mac_hid_emumouse_mutex);
+
 static int mac_hid_create_emumouse(void)
 {
         static struct lock_class_key mac_hid_emumouse_dev_event_class;
@@ -187,6 +189,10 @@ static int mac_hid_toggle_emumouse(ctl_table *table, int write,
         int old_val = *valp;
         int rc;
 
+        rc = mutex_lock_killable(&mac_hid_emumouse_mutex);
+        if (rc)
+                return rc;
+
         rc = proc_dointvec(table, write, buffer, lenp, ppos);
 
         if (rc == 0 && write && *valp != old_val) {
@@ -202,6 +208,8 @@ static int mac_hid_toggle_emumouse(ctl_table *table, int write,
         if (rc)
                 *valp = old_val;
 
+        mutex_unlock(&mac_hid_emumouse_mutex);
+
         return rc;
 }
 
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index 53cce3a5da23..39f660b2a60d 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -285,8 +285,8 @@ static void __devinit rackmeter_init_cpu_sniffer(struct rackmeter *rm)
 
 static void __devexit rackmeter_stop_cpu_sniffer(struct rackmeter *rm)
 {
-        cancel_rearming_delayed_work(&rm->cpu[0].sniffer);
-        cancel_rearming_delayed_work(&rm->cpu[1].sniffer);
+        cancel_delayed_work_sync(&rm->cpu[0].sniffer);
+        cancel_delayed_work_sync(&rm->cpu[1].sniffer);
 }
 
 static int __devinit rackmeter_setup(struct rackmeter *rm)