[PATCH 03/14] drm/omap: use atomic_dec_not_zero()

[Fabian Frederick]

instead of atomic_add_unless(value, -1, 0)

Signed-off-by: Fabian Frederick <f...@skynet.be>
---
 drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c 
b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
index 3cab066..abd0b15 100644
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -184,7 +184,7 @@ static struct dmm_txn *dmm_txn_init(struct dmm *dmm, struct 
tcm *tcm)
 
        /* wait until an engine is available */
        ret = wait_event_interruptible(omap_dmm->engine_queue,
-               atomic_add_unless(&omap_dmm->engine_counter, -1, 0));
+               atomic_dec_not_zero(&omap_dmm->engine_counter));
        if (ret)
                return ERR_PTR(ret);
 
-- 
2.9.3