[SERIAL] Magic SysRq SAK does nothing on serial consoles

Make sysrq-K work on serial console by passing in the tty.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index f9fdf97506eade00a210265477f9d112eedfb176..de2e68159d96e885eef6aea5996bb25f6e1eb25e 100644 (file)
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -415,7 +415,7 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch,
 #ifdef SUPPORT_SYSRQ
        if (port->sysrq) {
                if (ch && time_before(jiffies, port->sysrq)) {
-                       handle_sysrq(ch, regs, NULL);
+                       handle_sysrq(ch, regs, port->info->tty);
                        port->sysrq = 0;
                        return 1;
                }