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Commit 0efb2a03 authored by Krzysztof Helt's avatar Krzysztof Helt Committed by Linus Torvalds
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cirrusfb: do not allow unsupported pixel depth 



Do not allow modes with unsupported pixel depth.  Otherwise, one can hang
a computer by setting incorrect value with fbset command.

Signed-off-by: default avatarKrzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 697f619f

drivers/video/cirrusfb.c

+1 −3
Original line number Diff line number Diff line
@@ -567,9 +567,7 @@ static int cirrusfb_check_var(struct fb_var_screeninfo *var, 
	default:

		dev_dbg(info->device,

			"Unsupported bpp size: %d\n", var->bits_per_pixel);

		assert(false);

		/* should never occur */

		break;

		return -EINVAL;

	}



	if (var->xres_virtual < var->xres)