linux-kernel - [PATCH] fbdev: fbmem: Fix logo center image dx issue

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Message-Id: <20220628163641.4167-1-greens9@163.com>
Date:   Tue, 28 Jun 2022 09:36:41 -0700
From:   Guiling Deng <greens9@....com>
To:     daniel@...ll.ch, deller@....de
Cc:     linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Guiling Deng <greens9@....com>
Subject: [PATCH] fbdev: fbmem: Fix logo center image dx issue

Image.dx gets wrong value because of missing '()'.

If xres == logo->width and n == 1, image.dx = -16.

Signed-off-by: Guiling Deng <greens9@....com>
---
 drivers/video/fbdev/core/fbmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index c4a18322dee9..1fd2bdb11266 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -511,7 +511,7 @@ static int fb_show_logo_line(struct fb_info *info, int rotate,
 
 		while (n && (n * (logo->width + 8) - 8 > xres))
 			--n;
-		image.dx = (xres - n * (logo->width + 8) - 8) / 2;
+		image.dx = (xres - (n * (logo->width + 8) - 8)) / 2;
 		image.dy = y ?: (yres - logo->height) / 2;
 	} else {
 		image.dx = 0;
-- 
2.25.1