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authorDaniel Walker <dwalker@mvista.com>2008-02-04 23:35:47 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-19 19:10:19 -0700
commitda19cbcf71cde3c09587b5924d113f0c7f1fd23a (patch)
treef1731d6a0f8606afcc283c5540055d8e56bb7309 /drivers/base/memory.c
parent610ad5064cb90aec35f5837bbde3d316fe02aca7 (diff)
driver core: memory: semaphore to mutex
Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/memory.c')
-rw-r--r--drivers/base/memory.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 7ae413fdd5f..1f3801a8184 100644
--- a/drivers/base/memory.c
+++ b/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>
@@ -205,7 +206,7 @@ static int memory_block_change_state(struct memory_block *mem,
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;
@@ -217,7 +218,7 @@ static int memory_block_change_state(struct memory_block *mem,
mem->state = to_state;
out:
- up(&mem->state_sem);
+ mutex_unlock(&mem->state_mutex);
return ret;
}
@@ -341,7 +342,7 @@ static int add_memory_block(unsigned long node_id, struct mem_section *section,
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);