linux-kernel - [PATCH] drm/drm_vblank.c: using u32 instead of the int to store frame size

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20230523102328.372204-1-15330273260@189.cn>
Date:   Tue, 23 May 2023 18:23:28 +0800
From:   Sui Jingfeng <15330273260@....cn>
To:     Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Sui Jingfeng <suijingfeng@...ngson.cn>,
        Li Yi <liyi@...ngson.cn>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        loongson-kernel@...ts.loongnix.cn,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Subject: [PATCH] drm/drm_vblank.c: using u32 instead of the int to store frame size

From: Sui Jingfeng <suijingfeng@...ngson.cn>

Both mode->crtc_htotal and mode->crtc_vtotal are u16 type, using a u32 is
to store the result instead of int.

Signed-off-by: Sui Jingfeng <suijingfeng@...ngson.cn>
Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc: Maxime Ripard <mripard@...nel.org>
Cc: Thomas Zimmermann <tzimmermann@...e.de>
Cc: David Airlie <airlied@...il.com>
Cc: Daniel Vetter <daniel@...ll.ch>
Cc: dri-devel@...ts.freedesktop.org
Cc: linux-kernel@...r.kernel.org
Cc: loongson-kernel@...ts.loongnix.cn
---
 drivers/gpu/drm/drm_vblank.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
index 877e2067534f..a8dfe5551b7c 100644
--- a/drivers/gpu/drm/drm_vblank.c
+++ b/drivers/gpu/drm/drm_vblank.c
@@ -622,7 +622,7 @@ void drm_calc_timestamping_constants(struct drm_crtc *crtc,
 
 	/* Valid dotclock? */
 	if (dotclock > 0) {
-		int frame_size = mode->crtc_htotal * mode->crtc_vtotal;
+		u32 frame_size = mode->crtc_htotal * mode->crtc_vtotal;
 
 		/*
 		 * Convert scanline length in pixels and video
-- 
2.25.1