Steffen Maier d99b601b63 [SCSI] zfcp: restore refcount check on port_remove ... Upstream commit f3450c7b91 "[SCSI] zfcp: Replace local reference counting with common kref" accidentally dropped a reference count check before tearing down zfcp_ports that are potentially in use by zfcp_units. Even remote ports in use can be removed causing unreachable garbage objects zfcp_ports with zfcp_units. Thus units won't come back even after a manual port_rescan. The kref of zfcp_port->dev.kobj is already used by the driver core. We cannot re-use it to track the number of zfcp_units. Re-introduce our own counter for units per port and check on port_remove. Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com> Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: <stable@vger.kernel.org> #2.6.33+ Signed-off-by: James Bottomley <JBottomley@Parallels.com>		2012-09-24 12:11:02 +04:00
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block	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
char	s390/sclp_sdias: Add missing break and "fall through"	2012-08-08 07:32:55 -07:00
cio	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
crypto	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
kvm	KVM updates for the 3.6 merge window	2012-07-24 12:01:20 -07:00
net	qeth: repair crash in qeth_l3_vlan_rx_kill_vid()	2012-07-25 15:24:13 -07:00
scsi	[SCSI] zfcp: restore refcount check on port_remove	2012-09-24 12:11:02 +04:00
Makefile	[S390] split/move machine check handler code	2009-03-26 15:24:10 +01:00