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Sebastian Ott 181d95229b [S390] dasd: fix refcounting in dasd_change_state ... To set a dasd online dasd_change_state is called twice. The first cycle will schedule initial analysis of the device, set the rc to -EAGAIN and will not touch the device state any more. The initial analysis will in turn call dasd_change_state to increase the state to the final DASD_STATE_ONLINE. If the dasd_change_state on the second thread outruns the other one both finish with the state set to DASD_STATE_ONLINE and the device refcount will be decreased by 2. Fix this by leaving dasd_change_state on rc == -EAGAIN so that the refcount will always be decreased by 1. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2009-06-22 12:08:23 +02:00
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block	[S390] dasd: fix refcounting in dasd_change_state	2009-06-22 12:08:23 +02:00
char	[S390] driver_data access	2009-06-22 12:08:23 +02:00
cio	[S390] qdio: Sanitize do_QDIO sanity checks	2009-06-22 12:08:21 +02:00
crypto	[S390] ap/zcrypt: Suspend/Resume ap bus and zcrypt	2009-06-22 12:08:21 +02:00
kvm	virtio: find_vqs/del_vqs virtio operations	2009-06-12 22:16:36 +09:30
net	[S390] driver_data access	2009-06-22 12:08:23 +02:00
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2009-06-17 09:50:44 -07:00
Makefile	[S390] split/move machine check handler code	2009-03-26 15:24:10 +01:00