From: Amit Shah <amit.shah@redhat.com>
Date: Thu, 2 Sep 2010 12:50:58 +0000 (+0530)
Subject: virtio: console: Add a find_port_by_devt() function
X-Git-Tag: v2.6.37-rc1~219^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=04950cdf071b6e5aa4794c93ad3e3ce8a1c4aa8c;p=pandora-kernel.git

virtio: console: Add a find_port_by_devt() function

To convert to using cdev as a pointer to avoid kref troubles, we have to
use a different method to get to a port from an inode than the current
container_of method.

Add find_port_by_devt() that looks up all portdevs and ports with those
portdevs to find the right port.

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