linux_dsm_epyc7002/drivers
Bart Van Assche 09addb1d16 scsi: core: Make scsi_internal_device_unblock_nowait() reject invalid new_state
The only 'new_state' values passed by upstream kernel code to
scsi_internal_device_unblock_nowait() are SDEV_RUNNING and
SDEV_TRANSPORT_OFFLINE. These are the only values that should be passed to
this function. Hence check the value of the 'new_state' argument to avoid
that scsi_internal_device_unblock_nowait() would be used to trigger an
illegal SCSI device state transition. In this context 'illegal' means not
allowed by scsi_device_set_state().

Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-07 21:43:55 -04:00
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scsi scsi: core: Make scsi_internal_device_unblock_nowait() reject invalid new_state 2019-08-07 21:43:55 -04:00
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