From 90fd68dcf9a763f7e575c8467415bd8a66d073f4 Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Fri, 23 Sep 2016 12:36:02 +0200 Subject: [PATCH] drm/udl: fix line iterator in damage handling MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The udl damage handler is supposed to render 'height' lines, but its iterator has an obvious typo that makes it miss most lines if the rectangle does not cover 0/0. Fix the damage handler to correctly render all lines. This is a fallout from: commit e375882406d0cc24030746638592004755ed4ae0 Author: Noralf Trønnes Date: Thu Apr 28 17:18:37 2016 +0200 drm/udl: Use drm_fb_helper deferred_io support Tested-by: poma Cc: stable@vger.kernel.org # 4.7+ Reviewed-by: Daniel Vetter Signed-off-by: David Herrmann Reviewed-by: Eric Engestrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/udl/udl_fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index 9688bfa92ccd..611b6b9bb3cb 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -122,7 +122,7 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, return 0; cmd = urb->transfer_buffer; - for (i = y; i < height ; i++) { + for (i = y; i < y + height ; i++) { const int line_offset = fb->base.pitches[0] * i; const int byte_offset = line_offset + (x * bpp); const int dev_byte_offset = (fb->base.width * bpp * i) + (x * bpp); -- 2.30.2