From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Wed, 10 Jun 2009 19:43:02 +0000 (-0700)
Subject: devres: WARN() and return, don't crash on device_del() of uninitialized device
X-Git-Tag: v2.6.31-rc3~3^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eb8d3c604fe7496323efb9a858bef84c489ca584;p=pandora-kernel.git

devres: WARN() and return, don't crash on device_del() of uninitialized device

I just debugged an obscure crash caused by a device_del() of a all NULL'd
out struct device (in usb-serial) and found that a patch like this one would
have saved me time (in addition to improved chances of a bug report from
users hitting similar driver bugs).

[akpm@linux-foundation.org: cleanup]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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