linux_old1/drivers/scsi/mpt3sas
Sreekanth Reddy b65cfedf45 [SCSI] mpt3sas: fix for kernel panic when driver loads with HBA conected to non LUN 0 configured expander
With some enclosures when LUN 0 is not created but LUN 1 or LUN X is created
then SCSI scan procedure calls target_alloc, slave_alloc call back functions
for LUN 0 and slave_destory() for same LUN 0.

In these kind of cases within slave_destroy, pointer to scsi_target in
_sas_device structure is set to NULL, following which when slave_alloc for LUN
1 is called then starget would not be set properly for this LUN.  So,
scsi_target pointer pointing to NULL value would lead to a crash later in the
discovery procedure.

To solve this issue set the sas_device's scsi_target pointer to scsi_device's
scsi_target if it is NULL earlier in slave_alloc callback function.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09 08:43:55 +01:00
..
mpi
Kconfig [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00
Makefile
mpt3sas_base.c [SCSI] mpt3sas: Updated the Hardware timing requirements 2013-07-09 08:39:03 +01:00
mpt3sas_base.h [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00
mpt3sas_config.c [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00
mpt3sas_ctl.c [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00
mpt3sas_ctl.h [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00
mpt3sas_debug.h [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00
mpt3sas_scsih.c [SCSI] mpt3sas: fix for kernel panic when driver loads with HBA conected to non LUN 0 configured expander 2013-07-09 08:43:55 +01:00
mpt3sas_transport.c [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00
mpt3sas_trigger_diag.c [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00
mpt3sas_trigger_diag.h [SCSI] mpt3sas: 2013 source code copyright 2013-07-09 08:34:03 +01:00