diff mbox

[11/14] PM: use atomic_dec_not_zero()

Message ID 20170130184821.18943-1-fabf@skynet.be (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Fabian Frederick Jan. 30, 2017, 6:48 p.m. UTC 
instead of atomic_add_unless(value, -1, 0)

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

Patch

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;
 	}