[PATCH 02/14] drm/exynos: use atomic_dec_not_zero()
From: Fabian Frederick <hidden>
Date: 2017-01-30 18:41:10
Also in:
lkml
Subsystem:
drm drivers, drm drivers for exynos, the rest · Maintainers:
David Airlie, Simona Vetter, Inki Dae, Seung-Woo Kim, Kyungmin Park, Linus Torvalds
instead of atomic_add_unless(value, -1, 0) Signed-off-by: Fabian Frederick <redacted> --- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 745cfbd..0e191b6 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c@@ -923,7 +923,7 @@ static void fimd_te_handler(struct exynos_drm_crtc *crtc) * If there is a page flip request, triggers and handles the page flip * event so that current fb can be updated into panel GRAM. */ - if (atomic_add_unless(&ctx->win_updated, -1, 0)) + if (atomic_dec_not_zero(&ctx->win_updated)) fimd_trigger(ctx->dev); out:
--
2.9.3