[PATCH 10/14] PM / Hibernate: 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/hibernate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index b26dbc4..cfa7930 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -691,7 +691,7 @@ int hibernate(void)
 
        lock_system_sleep();
        /* The snapshot device should not be opened while we're running */
-       if (!atomic_add_unless(&snapshot_device_available, -1, 0)) {
+       if (!atomic_dec_not_zero(&snapshot_device_available)) {
                error = -EBUSY;
                goto Unlock;
        }
@@ -866,7 +866,7 @@ static int software_resume(void)
                goto Unlock;
 
        /* The snapshot device should not be opened while we're running */
-       if (!atomic_add_unless(&snapshot_device_available, -1, 0)) {
+       if (!atomic_dec_not_zero(&snapshot_device_available)) {
                error = -EBUSY;
                swsusp_close(FMODE_READ);
                goto Unlock;
-- 
2.9.3