From: Stefan Haberland <stefan.haberland@de.ibm.com>
Date: Fri, 26 Feb 2010 21:37:47 +0000 (+0100)
Subject: [S390] dasd: fix refcounting.
X-Git-Tag: v2.6.34-rc1~268^2~9
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=589c74d5076dd1bde13a5a36d97ca79be8bd72b2;p=pandora-kernel.git

[S390] dasd: fix refcounting.

The function dasd_device_from_cdev returns a reference to the dasd
device and increases the refcount by one. If an exception occurs,
the refcount was not decreased in all cases
e.g. in dasd_discipline_show.
Prevent the offline processing from hang by correcting two functions
to decrease the refcount even if an error occured.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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