prereset() is now allowed to set flag for unsupported reset method.
EH layer is responsible for selecting the fallback.  Remove non-sense
warning message.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
 
        /* did prereset() screw up?  if so, fix up to avoid oopsing */
        if (!reset) {
-               ata_port_printk(ap, KERN_ERR, "BUG: prereset() requested "
-                               "invalid reset type\n");
                if (softreset)
                        reset = softreset;
                else