scsi: core: check for device state in __scsi_remove_target()

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commit 81b6c99989 upstream.

As it turned out device_get() doesn't use kref_get_unless_zero(), so we
will be always getting a device pointer.  Consequently, we need to check
for the device state in __scsi_remove_target() to avoid tripping over
deleted objects.

Fixes: fbce4d97fd ("scsi: fixup kernel warning during rmmod()")
Reported-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Max Ivanov <ivanov.maxim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Hannes Reinecke 2017-12-13 14:21:37 +01:00 • committed by Greg Kroah-Hartman

parent 26f8c38bb4

commit 875758d79d

1 changed files with 4 additions and 1 deletions

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drivers/scsi/scsi_sysfs.c

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