From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 2 Jul 2013 13:06:33 +0000 (+0200)
Subject: [SCSI] enable destruction of blocked devices which fail LUN scanning
X-Git-Tag: v3.11-rc1~6^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0516c08d10835a8f9169051504cbc9929b3a7f3e;p=pandora-kernel.git

[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>
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