virtio: console: Check if portdev is valid in send_control_msg()
authorAmit Shah <amit.shah@redhat.com>
Thu, 2 Sep 2010 12:41:42 +0000 (17:41 +0530)
committerRusty Russell <rusty@rustcorp.com.au>
Thu, 21 Oct 2010 07:14:00 +0000 (17:14 +1030)
commit84ec06c59a14d0941dd58ca6793b24a7e86b3b85
treed026b868f47f335e70ddb13575393de125dcd3be
parent96eb872b2a041b1536ccc6ae2fa87eb28f6e2bb2
virtio: console: Check if portdev is valid in send_control_msg()

A portdev may have been hot-unplugged while a port was open()ed.  Skip
sending control messages when the portdev isn't valid.

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