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authorLaurent Pinchart2011-05-25 11:34:52 +0200
committerLaurent Pinchart2011-08-19 10:31:17 +0200
commit1d4b695fa32b707b40fe2dab6a21a39bd91f4615 (patch)
tree7f41d31d2f4a886da057bbbddec3ac11f2f0b2ef /drivers/video/gxt4500.c
parentg364fb: use display information in info not in var for panning (diff)
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gxt4500: use display information in info not in var for panning
We must not use any information in the passed var besides xoffset, yoffset and vmode as otherwise applications might abuse it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'drivers/video/gxt4500.c')
-rw-r--r--drivers/video/gxt4500.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c
index 896e53dea906..0fad23f810a3 100644
--- a/drivers/video/gxt4500.c
+++ b/drivers/video/gxt4500.c
@@ -543,8 +543,8 @@ static int gxt4500_pan_display(struct fb_var_screeninfo *var,
if (var->xoffset & 7)
return -EINVAL;
- if (var->xoffset + var->xres > var->xres_virtual ||
- var->yoffset + var->yres > var->yres_virtual)
+ if (var->xoffset + info->var.xres > info->var.xres_virtual ||
+ var->yoffset + info->var.yres > info->var.yres_virtual)
return -EINVAL;
writereg(par, REFRESH_START, (var->xoffset << 16) | var->yoffset);