From 36f71405e63f3d1e4c2a8dd98523820bbca8e078 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Mon, 12 Feb 2007 00:54:53 -0800 Subject: [PATCH] tgafb: fix copying overlapping areas The direction of copying in the copyarea functions is selected incorrectly, resulting in corruption. This is a fix. Signed-off-by: Maciej W. Rozycki Cc: James Simmons Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/tgafb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c index 0a00a6c..9c23a78 100644 --- a/drivers/video/tgafb.c +++ b/drivers/video/tgafb.c @@ -885,7 +885,7 @@ copyarea_line_8bpp(struct fb_info *info, u32 dy, u32 sy, n64 = (height * width) / 64; - if (dy < sy) { + if (sy < dy) { spos = (sy + height) * width; dpos = (dy + height) * width; @@ -933,7 +933,7 @@ copyarea_line_32bpp(struct fb_info *info, u32 dy, u32 sy, n16 = (height * width) / 16; - if (dy < sy) { + if (sy < dy) { src = tga_fb + (sy + height) * width * 4; dst = tga_fb + (dy + height) * width * 4; -- cgit v1.1