From: Mikulas Patocka <mpatocka@redhat.com>
Date: Wed, 25 Jul 2018 13:41:56 +0000 (+0200)
Subject: udlfb: set line_length in dlfb_ops_set_par
X-Git-Tag: v4.18.7~19
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd13ae7e102a3e8dd4b45bd2dc12c61416331563;p=thirdparty%2Fkernel%2Fstable.git

udlfb: set line_length in dlfb_ops_set_par

commit 0ac319b7af1bb24a33365d0ec82a2f56a59b2a78 upstream.

Set the variable "line_length" in the function dlfb_ops_set_par. Without
this, we get garbage if we select different videomode with fbset.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
index 4ab903456129b..862e8027acf60 100644
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c
@@ -1057,6 +1057,7 @@ static int dlfb_ops_set_par(struct fb_info *info)
 		return result;
 
 	dlfb->current_mode = fvs;
+	info->fix.line_length = info->var.xres * (info->var.bits_per_pixel / 8);
 
 	if (dlfb->fb_count == 0) {