amifb: get rid of pointless access_ok() calls

addresses passed only to get_user() and put_user()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

drivers/video/fbdev/amifb.c

@@ -1855,8 +1855,6 @@ static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var,
 	var->yspot = par->crsr.spot_y;
 	if (size > var->height * var->width)
 		return -ENAMETOOLONG;
-	if (!access_ok(data, size))
-		return -EFAULT;
 	delta = 1 << par->crsr.fmode;
 	lspr = lofsprite + (delta << 1);
 	if (par->bplcon0 & BPC0_LACE)
@@ -1935,8 +1933,6 @@ static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var,
 		return -EINVAL;
 	if (!var->height)
 		return -EINVAL;
-	if (!access_ok(data, var->width * var->height))
-		return -EFAULT;
 	delta = 1 << fmode;
 	lofsprite = shfsprite = (u_short *)spritememory;
 	lspr = lofsprite + (delta << 1);