Commit 60e5e0b8 authored May 27, 2010 by Amit Shah Committed by Rusty Russell Jun 03, 2010

virtio: console: Fix crash when port is unplugged and blocked for write



When a program that has a virtio port opened and blocked for a write
operation, a port hot-unplug event will later led to a crash when
SIGTERM was sent to the program. Fix that.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

parent 0047634d

drivers/char/virtio_console.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -529,6 +529,10 @@ static bool will_write_block(struct port *port)
		{
		bool ret;

		if (!port->guest_connected) {
		/* Port got hot-unplugged. Let's exit. */
		return false;
		}
		if (!port->host_connected)
		return true;