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path: root/drivers/video/sis/sis_main.c
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Diffstat (limited to 'drivers/video/sis/sis_main.c')
-rw-r--r--drivers/video/sis/sis_main.c30
1 files changed, 10 insertions, 20 deletions
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 7525984..078ca21 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1333,19 +1333,14 @@ sisfb_set_base_CRT2(struct sis_video_info *ivideo, unsigned int base)
}
static int
-sisfb_pan_var(struct sis_video_info *ivideo, struct fb_var_screeninfo *var)
+sisfb_pan_var(struct sis_video_info *ivideo, struct fb_info *info,
+ struct fb_var_screeninfo *var)
{
- if(var->xoffset > (var->xres_virtual - var->xres)) {
- return -EINVAL;
- }
- if(var->yoffset > (var->yres_virtual - var->yres)) {
- return -EINVAL;
- }
-
- ivideo->current_base = (var->yoffset * var->xres_virtual) + var->xoffset;
+ ivideo->current_base = var->yoffset * info->var.xres_virtual
+ + var->xoffset;
/* calculate base bpp dep. */
- switch(var->bits_per_pixel) {
+ switch (info->var.bits_per_pixel) {
case 32:
break;
case 16:
@@ -1635,20 +1630,15 @@ sisfb_pan_display(struct fb_var_screeninfo *var, struct fb_info* info)
struct sis_video_info *ivideo = (struct sis_video_info *)info->par;
int err;
- if(var->xoffset > (var->xres_virtual - var->xres))
- return -EINVAL;
-
- if(var->yoffset > (var->yres_virtual - var->yres))
- return -EINVAL;
-
- if(var->vmode & FB_VMODE_YWRAP)
+ if (var->vmode & FB_VMODE_YWRAP)
return -EINVAL;
- if(var->xoffset + info->var.xres > info->var.xres_virtual ||
- var->yoffset + info->var.yres > info->var.yres_virtual)
+ if (var->xoffset + info->var.xres > info->var.xres_virtual ||
+ var->yoffset + info->var.yres > info->var.yres_virtual)
return -EINVAL;
- if((err = sisfb_pan_var(ivideo, var)) < 0)
+ err = sisfb_pan_var(ivideo, info, var);
+ if (err < 0)
return err;
info->var.xoffset = var->xoffset;

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