Commit 179753aa authored by Jocelyn Falempe's avatar Jocelyn Falempe
Browse files

drm/panic: Fix drawing the logo on a small narrow screen 



If the logo width is bigger than the framebuffer width, and the
height is big enough to hold the logo and the message, it will draw
at x coordinate that are higher than the width, and ends up in a
corrupted image.

Fixes: 4b570ac2 ("drm/rect: Add drm_rect_overlap()")
Reviewed-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20251009122955.562888-2-jfalempe@redhat.com


Signed-off-by: default avatarJocelyn Falempe <jfalempe@redhat.com>
parent 4eabd0d8

drivers/gpu/drm/drm_panic.c

+3 −0
Original line number Diff line number Diff line
@@ -429,6 +429,9 @@ static void drm_panic_logo_rect(struct drm_rect *rect, const struct font_desc *f 
static void drm_panic_logo_draw(struct drm_scanout_buffer *sb, struct drm_rect *rect,

				const struct font_desc *font, u32 fg_color)

{

	if (rect->x2 > sb->width || rect->y2 > sb->height)

		return;



	if (logo_mono)

		drm_panic_blit(sb, rect, logo_mono->data,

			       DIV_ROUND_UP(drm_rect_width(rect), 8), 1, fg_color);