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Commit d8d64d6b authored by Simon Tatham's avatar Simon Tatham Committed by Russell King
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[SERIAL] Magic SysRq SAK does nothing on serial consoles 



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

Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e480af09

include/linux/serial_core.h

+1 −1
Original line number Diff line number Diff line
@@ -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;

		}