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gbefb: unsigned var->pixclock cannot be less than 0

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unsigned var->pixclock cannot be less than 0

Signed-off-by: Roel Kluin <[email protected]>
Cc: Krzysztof Helt <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
roel kluin 2009-01-06 14:42:31 -08:00 • committed by Linus Torvalds
commit 6405141fb3
1 changed files with 5 additions and 2 deletions
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7
drivers/video/gbefb.c
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@ -912,6 +912,7 @@ static int gbefb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
unsigned int line_length;
struct gbe_timing_info timing;
int ret;
/* Limit bpp to 8, 16, and 32 */
if (var->bits_per_pixel <= 8)
@ -930,8 +931,10 @@ static int gbefb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
var->grayscale = 0; /* No grayscale for now */
if ((var->pixclock = compute_gbe_timing(var, &timing)) < 0)
return(-EINVAL);
ret = compute_gbe_timing(var, &timing);
var->pixclock = ret;
if (ret < 0)
return -EINVAL;
/* Adjust virtual resolution, if necessary */
if (var->xres > var->xres_virtual || (!ywrap && !ypan))