From: Amit Shah <amit.shah@redhat.com>
Date: Thu, 16 Sep 2010 09:13:09 +0000 (+0530)
Subject: virtio: console: Disable lseek(2) for port file operations
X-Git-Tag: v2.6.37-rc1~219^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=299fb61c08c2fcd1bb6d3a4e87e53dc368475416;p=pandora-kernel.git

virtio: console: Disable lseek(2) for port file operations

The ports are char devices; do not have seeking capabilities.  Calling
nonseekable_open() from the fops_open() call and setting the llseek fops
pointer to no_llseek ensures an lseek() call from userspace returns
-ESPIPE.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

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