[PATCH] drm/sun4i: Fix uninitialized variables in vi layer

From: Jernej Skrabec
Date: Wed Dec 06 2017 - 10:26:21 EST


min_scale and max_scale in sun8i_vi_layer_atomic_check() can be used
without initialization.

Fix that.

Fixes: b862a648de3b (drm/sun4i: Add support for HW scaling to DE2)

Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
---
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index e39af8d377d0..40c3b303068a 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -253,6 +253,9 @@ static int sun8i_vi_layer_atomic_check(struct drm_plane *plane,
clip.x2 = crtc_state->adjusted_mode.hdisplay;
clip.y2 = crtc_state->adjusted_mode.vdisplay;

+ min_scale = DRM_PLANE_HELPER_NO_SCALING;
+ max_scale = DRM_PLANE_HELPER_NO_SCALING;
+
if (layer->mixer->cfg->scaler_mask & BIT(layer->channel)) {
min_scale = SUN8I_VI_SCALER_SCALE_MIN;
max_scale = SUN8I_VI_SCALER_SCALE_MAX;
--
2.15.1