[ARM] Convert some arm semaphores to mutexes

The arm clock semaphores are strict mutexes, convert them to the new
mutex implementation

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 8 insertions, 7 deletions

diff --git a/arch/arm/mach-aaec2000/clock.c b/arch/arm/mach-aaec2000/clock.c
index 1c84c60..74aa7a3 100644
--- a/arch/arm/mach-aaec2000/clock.c
+++ b/arch/arm/mach-aaec2000/clock.c
@@ -16,26 +16,27 @@
 #include <linux/err.h>
 #include <linux/string.h>
 #include <linux/clk.h>
+#include <linux/mutex.h>
 
 #include <asm/semaphore.h>
 
 #include "clock.h"
 
 static LIST_HEAD(clocks);
-static DECLARE_MUTEX(clocks_sem);
+static DEFINE_MUTEX(clocks_mutex);
 
 struct clk *clk_get(struct device *dev, const char *id)
 {
 	struct clk *p, *clk = ERR_PTR(-ENOENT);
 
-	down(&clocks_sem);
+	mutex_lock(&clocks_mutex);
 	list_for_each_entry(p, &clocks, node) {
 		if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
 			clk = p;
 			break;
 		}
 	}
-	up(&clocks_sem);
+	mutex_unlock(&clocks_mutex);
 
 	return clk;
 }
@@ -78,18 +79,18 @@ EXPORT_SYMBOL(clk_set_rate);
 
 int clk_register(struct clk *clk)
 {
-	down(&clocks_sem);
+	mutex_lock(&clocks_mutex);
 	list_add(&clk->node, &clocks);
-	up(&clocks_sem);
+	mutex_unlock(&clocks_mutex);
 	return 0;
 }
 EXPORT_SYMBOL(clk_register);
 
 void clk_unregister(struct clk *clk)
 {
-	down(&clocks_sem);
+	mutex_lock(&clocks_mutex);
 	list_del(&clk->node);
-	up(&clocks_sem);
+	mutex_unlock(&clocks_mutex);
 }
 EXPORT_SYMBOL(clk_unregister);