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[SCSI] enable destruction of blocked devices which fail LUN scanning 

If something goes wrong during LUN scanning, e.g. a transport layer
failure occurs, then __scsi_remove_device() can get invoked by the
LUN scanning code for a SCSI device in state SDEV_CREATED_BLOCK and
before the SCSI device has been added to sysfs (is_visible == 0).
Make sure that even in this case the transition into state SDEV_DEL
occurs. This avoids that __scsi_remove_device() can get invoked a
second time by scsi_forget_host() if this last function is invoked
from another thread than the thread that performs LUN scanning.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
hifive-unleashed-5.1
Bart Van Assche 2013-07-02 15:06:33 +02:00 committed by James Bottomley
parent e2eb7244bc
commit 0516c08d10
1 changed files with 1 additions and 0 deletions
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drivers/scsi/scsi_lib.c
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@ -2193,6 +2193,7 @@ scsi_device_set_state(struct scsi_device *sdev, enum scsi_device_state state)
case SDEV_OFFLINE:
case SDEV_TRANSPORT_OFFLINE:
case SDEV_CANCEL:
case SDEV_CREATED_BLOCK:
break;
default:
goto illegal;