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[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>
This commit is contained in:
Maciej W. Rozycki 2007-02-12 00:54:53 -08:00 committed by Linus Torvalds
parent ee9a25e5df
commit 36f71405e6
1 changed files with 2 additions and 2 deletions
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4
drivers/video/tgafb.c
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@ -885,7 +885,7 @@ copyarea_line_8bpp(struct fb_info *info, u32 dy, u32 sy,
n64 = (height * width) / 64; n64 = (height * width) / 64;
if (dy < sy) { if (sy < dy) {
spos = (sy + height) * width; spos = (sy + height) * width;
dpos = (dy + 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; n16 = (height * width) / 16;
if (dy < sy) { if (sy < dy) {
src = tga_fb + (sy + height) * width * 4; src = tga_fb + (sy + height) * width * 4;
dst = tga_fb + (dy + height) * width * 4; dst = tga_fb + (dy + height) * width * 4;