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drm/repaper: Reduce temporary buffer size in repaper_fb_dirty()

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[ Upstream commit fedf429e071f6dbbe7a69dfc342492e037692018 ]

As the temporary buffer is no longer used to store 8-bit grayscale data,
its size can be reduced to the size needed to store the monochrome
bitmap data.

Fixes: 24c6bedefb ("drm/repaper: Use format helper for xrgb8888 to monochrome conversion")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220317081830.1211400-6-geert@linux-m68k.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Geert Uytterhoeven 2022-03-17 09:18:30 +01:00 committed by Greg Kroah-Hartman
parent d544c89bb1
commit 4174f889c4
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/tiny/repaper.c
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@ -533,7 +533,7 @@ static int repaper_fb_dirty(struct drm_framebuffer *fb)
DRM_DEBUG("Flushing [FB:%d] st=%ums\n", fb->base.id,
epd->factored_stage_time);
buf = kmalloc_array(fb->width, fb->height, GFP_KERNEL);
buf = kmalloc(fb->width * fb->height / 8, GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto out_exit;