[S390] dasd: fix refcounting.

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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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Stefan Haberland 2010-02-26 22:37:47 +01:00 • committed by Martin Schwidefsky

parent 9eb251225a

commit 589c74d507

2 changed files with 25 additions and 12 deletions

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24

drivers/s390/block/dasd.c

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13

drivers/s390/block/dasd_devmap.c

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