From 9f7dfd0cb50f93662b182c05e59987ba9db9505e Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Tue, 26 Feb 2019 15:25:48 +0100 Subject: [PATCH] drm/sun4i: Move rate variables to long long Our clock rate variables are getting pretty close to the LONG_MAX / ULONG_MAX limit, especially since we will start doing arithmetic on it. Move those types to unsigned long long to be sure we don't overflow their type. Signed-off-by: Maxime Ripard Tested-by: Vasily Khoruzhick # tested on pinebook Reviewed-by: Paul Kocialkowski Link: https://patchwork.freedesktop.org/patch/msgid/022c3b850413edd6afbca20062f100971de2f5af.1551191081.git-series.maxime.ripard@bootlin.com --- drivers/gpu/drm/sun4i/sun4i_rgb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_rgb.c b/drivers/gpu/drm/sun4i/sun4i_rgb.c index fb32cce7ece2..8df2c17f8427 100644 --- a/drivers/gpu/drm/sun4i/sun4i_rgb.c +++ b/drivers/gpu/drm/sun4i/sun4i_rgb.c @@ -60,8 +60,8 @@ static enum drm_mode_status sun4i_rgb_mode_valid(struct drm_encoder *crtc, struct sun4i_tcon *tcon = rgb->tcon; u32 hsync = mode->hsync_end - mode->hsync_start; u32 vsync = mode->vsync_end - mode->vsync_start; - unsigned long rate = mode->clock * 1000; - long rounded_rate; + unsigned long long rate = mode->clock * 1000; + unsigned long long rounded_rate; DRM_DEBUG_DRIVER("Validating modes...\n"); -- 2.30.2