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authorMaciej W. Rozycki <macro@linux-mips.org>2007-02-12 00:54:53 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 09:48:41 -0800
commit36f71405e63f3d1e4c2a8dd98523820bbca8e078 (patch)
tree10037edbfbdc7246cdc8038735de6fa624f7ae39 /drivers
parent[PATCH] tgafb: switch to framebuffer_alloc() (diff)
downloadlinux-dev-36f71405e63f3d1e4c2a8dd98523820bbca8e078.tar.xz
linux-dev-36f71405e63f3d1e4c2a8dd98523820bbca8e078.zip
[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 <macro@linux-mips.org> Cc: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/tgafb.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c
index 0a00a6cc7c2b..9c23a783e713 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;