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| author | Ingo Molnar <mingo@elte.hu> | 2008-08-21 15:28:24 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-21 15:28:24 +0400 |
| commit | 470fba7ebe60ad9185056b080b331abad24b4df9 (patch) | |
| tree | f83bc13d97adaf5dd0e0f1d6a157b890f868577f /drivers/video/atafb.c | |
| parent | 7225e75144b9718cbbe1820d9c011c809d5773fd (diff) | |
| parent | 6a55617ed5d1aa62b850de2cf66f5ede2eef4825 (diff) | |
| download | linux-470fba7ebe60ad9185056b080b331abad24b4df9.tar.xz | |
Merge branch 'linus' into x86/doc
Diffstat (limited to 'drivers/video/atafb.c')
| -rw-r--r-- | drivers/video/atafb.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/video/atafb.c b/drivers/video/atafb.c index fa55d356b535..77eb8b34fbfa 100644 --- a/drivers/video/atafb.c +++ b/drivers/video/atafb.c @@ -2593,13 +2593,16 @@ static void atafb_copyarea(struct fb_info *info, const struct fb_copyarea *area) width = x2 - dx; height = y2 - dy; + if (area->sx + dx < area->dx || area->sy + dy < area->dy) + return; + /* update sx,sy */ sx = area->sx + (dx - area->dx); sy = area->sy + (dy - area->dy); /* the source must be completely inside the virtual screen */ - if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual || - (sy + height) > info->var.yres_virtual) + if (sx + width > info->var.xres_virtual || + sy + height > info->var.yres_virtual) return; if (dy > sy || (dy == sy && dx > sx)) { |