From: Jonathan Corbet <corbet@lwn.net>
Date: Thu, 15 May 2008 22:24:25 +0000 (-0600)
Subject: usbcore: cdev lock_kernel() pushdown
X-Git-Tag: v2.6.27-rc1~1103^2~114
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=20613f24bcd1cbfb08e64f0bb00c44481313b448;p=pandora-kernel.git

usbcore: cdev lock_kernel() pushdown

usb_open() is protected by a down_read(&minor_rwsem), but I'm not sure I
trust it to protect everything including subsidiary open() functions.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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