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sm501fb: use display information in info not in var for panning

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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>
This commit is contained in:
Laurent Pinchart 2011-05-25 11:34:52 +02:00
parent 8e42a962a2
commit 0aa76b0ce1
1 changed files with 3 additions and 3 deletions
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6
drivers/video/sm501fb.c
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@ -582,7 +582,7 @@ static int sm501fb_pan_crt(struct fb_var_screeninfo *var,
{ {
struct sm501fb_par *par = info->par; struct sm501fb_par *par = info->par;
struct sm501fb_info *fbi = par->info; struct sm501fb_info *fbi = par->info;
unsigned int bytes_pixel = var->bits_per_pixel / 8; unsigned int bytes_pixel = info->var.bits_per_pixel / 8;
unsigned long reg; unsigned long reg;
unsigned long xoffs; unsigned long xoffs;
@ -614,10 +614,10 @@ static int sm501fb_pan_pnl(struct fb_var_screeninfo *var,
struct sm501fb_info *fbi = par->info; struct sm501fb_info *fbi = par->info;
unsigned long reg; unsigned long reg;
reg = var->xoffset | (var->xres_virtual << 16); reg = var->xoffset | (info->var.xres_virtual << 16);
smc501_writel(reg, fbi->regs + SM501_DC_PANEL_FB_WIDTH); smc501_writel(reg, fbi->regs + SM501_DC_PANEL_FB_WIDTH);
reg = var->yoffset | (var->yres_virtual << 16); reg = var->yoffset | (info->var.yres_virtual << 16);
smc501_writel(reg, fbi->regs + SM501_DC_PANEL_FB_HEIGHT); smc501_writel(reg, fbi->regs + SM501_DC_PANEL_FB_HEIGHT);
sm501fb_sync_regs(fbi); sm501fb_sync_regs(fbi);