[PATCH 2/3] driver base: memory: semaphore to mutex

[Daniel Walker <dwalker@mvista.com>]

[-- Attachment #1: base-memory-semaphore-to-mutex.patch --]
[-- Type: text/plain, Size: 1994 bytes --]

Signed-off-by: Daniel Walker <dwalker@mvista.com>

---
 drivers/base/memory.c  |    7 ++++---
 include/linux/memory.h |    5 ++---
 2 files changed, 6 insertions(+), 6 deletions(-)

Index: linux-2.6.23/drivers/base/memory.c
===================================================================
--- linux-2.6.23.orig/drivers/base/memory.c
+++ linux-2.6.23/drivers/base/memory.c
@@ -20,6 +20,7 @@
 #include <linux/kobject.h>
 #include <linux/memory_hotplug.h>
 #include <linux/mm.h>
+#include <linux/mutex.h>
 #include <asm/atomic.h>
 #include <asm/uaccess.h>
 
@@ -220,7 +221,7 @@ static int memory_block_change_state(str
 		unsigned long to_state, unsigned long from_state_req)
 {
 	int ret = 0;
-	down(&mem->state_sem);
+	mutex_lock(&mem->state_mutex);
 
 	if (mem->state != from_state_req) {
 		ret = -EINVAL;
@@ -232,7 +233,7 @@ static int memory_block_change_state(str
 		mem->state = to_state;
 
 out:
-	up(&mem->state_sem);
+	mutex_unlock(&mem->state_mutex);
 	return ret;
 }
 
@@ -357,7 +358,7 @@ static int add_memory_block(unsigned lon
 
 	mem->phys_index = __section_nr(section);
 	mem->state = state;
-	init_MUTEX(&mem->state_sem);
+	mutex_init(&mem->state_mutex);
 	mem->phys_device = phys_device;
 
 	ret = register_memory(mem, section, NULL);
Index: linux-2.6.23/include/linux/memory.h
===================================================================
--- linux-2.6.23.orig/include/linux/memory.h
+++ linux-2.6.23/include/linux/memory.h
@@ -18,8 +18,7 @@
 #include <linux/sysdev.h>
 #include <linux/node.h>
 #include <linux/compiler.h>
-
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 struct memory_block {
 	unsigned long phys_index;
@@ -30,7 +29,7 @@ struct memory_block {
 	 * created long after the critical areas during
 	 * initialization.
 	 */
-	struct semaphore state_sem;
+	struct mutex state_mutex;
 	int phys_device;		/* to which fru does this belong? */
 	void *hw;			/* optional pointer to fw/hw data */
 	int (*phys_callback)(struct memory_block *);

--