korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2025-01-17 03:14:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

gxt4500: use display information in info not in var for panning

Browse Source 
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>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Laurent Pinchart 2011-06-14 09:24:48 +00:00 committed by Paul Mundt
parent c12665ffcf
commit c2d340a403
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/video/gxt4500.c
View File

@ -543,8 +543,8 @@ static int gxt4500_pan_display(struct fb_var_screeninfo *var,
if (var->xoffset & 7) if (var->xoffset & 7)
return -EINVAL; return -EINVAL;
if (var->xoffset + var->xres > var->xres_virtual || if (var->xoffset + info->var.xres > info->var.xres_virtual ||
var->yoffset + var->yres > var->yres_virtual) var->yoffset + info->var.yres > info->var.yres_virtual)
return -EINVAL; return -EINVAL;
writereg(par, REFRESH_START, (var->xoffset << 16) | var->yoffset); writereg(par, REFRESH_START, (var->xoffset << 16) | var->yoffset);