This is following what 8250 driver is doing in console write function, to avoid the hardware lockup case. Signed-off-by: Feng Tang <feng.tang@xxxxxxxxx> --- drivers/tty/serial/mfd.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c index c4b50af..bde9fce 100644 --- a/drivers/tty/serial/mfd.c +++ b/drivers/tty/serial/mfd.c @@ -1113,6 +1113,8 @@ serial_hsu_console_write(struct console *co, const char *s, unsigned int count) unsigned int ier; int locked = 1; + touch_nmi_watchdog(); + local_irq_save(flags); if (up->port.sysrq) locked = 0; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
