watch_timeout
if (timeout != ssif_info->watch_timeout) {
ssif_info->watch_timeout = timeout;
if (ssif_info->watch_timeout)
jiffies + ssif_info->watch_timeout);
timer_setup(&ssif_info->watch_timer, watch_timeout, 0);
long watch_timeout; /* Timeout for flags check, 0 if off. */
if (ssif_info->watch_timeout) {
jiffies + ssif_info->watch_timeout);