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(parent: c60e050) | patch
Driver core: fix race in dev_driver_string
authorAlan Stern <stern@rowland.harvard.edu>
Fri, 4 Dec 2009 16:06:57 +0000 (11:06 -0500)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 11 Dec 2009 19:24:55 +0000 (11:24 -0800)
commit3589972e51fac1e02d0aaa576fa47f568cb94d40
tree05e89c751f410a3b54583f948ff9ffc841c333eatree
parentc60e0504c8e4fa14179d0687d80ef25148dd6dd4commit | diff
Driver core: fix race in dev_driver_string

This patch (as1310) works around a race in dev_driver_string().  If
the device is unbound while the function is running, dev->driver might
become NULL after we test it and before we dereference it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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