From a0b3b4860b6a1890ebb00a13a1529b887017e376 Mon Sep 17 00:00:00 2001
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: Wed, 10 Nov 2021 11:36:59 +0100
Subject: drm/fb-helper: Allocate shadow buffer of surface height
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: 18ac700d75e81b7892c6377f6d8b917453ac69fd
Patch-mainline: v5.17-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Allocating a shadow buffer of the height of the buffer object does
not support fbdev overallocation. Use surface height instead.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211110103702.374-7-tzimmermann@suse.de
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/drm_fb_helper.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 22bf690910b2..ed43b987d306 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -2344,7 +2344,7 @@ static int drm_fb_helper_generic_probe(struct drm_fb_helper *fb_helper,
return PTR_ERR(fbi);
fbi->fbops = &drm_fbdev_fb_ops;
- fbi->screen_size = fb->height * fb->pitches[0];
+ fbi->screen_size = sizes->surface_height * fb->pitches[0];
fbi->fix.smem_len = fbi->screen_size;
drm_fb_helper_fill_info(fbi, fb_helper, sizes);
--
2.38.1