[PATCH 11/14] PM: use atomic_dec_not_zero()

[Fabian Frederick]

instead of atomic_add_unless(value, -1, 0)

Signed-off-by: Fabian Frederick <f...@skynet.be>
---
 kernel/power/user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/power/user.c b/kernel/power/user.c
index 22df9f7..c478572 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -54,7 +54,7 @@ static int snapshot_open(struct inode *inode, struct file 
*filp)
 
        lock_system_sleep();
 
-       if (!atomic_add_unless(&snapshot_device_available, -1, 0)) {
+       if (!atomic_dec_not_zero(&snapshot_device_available)) {
                error = -EBUSY;
                goto Unlock;
        }
-- 
2.9.3