[SCSI] fc_transport: Check portstates before invoking target scan
authorHannes Reinecke <hare@suse.de>
Thu, 14 Jun 2007 13:16:45 +0000 (15:16 +0200)
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>
Sun, 17 Jun 2007 21:03:11 +0000 (16:03 -0500)
commit0d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6
tree21c82df82bc70bc3e8439ef0ac34a10b0dfee589
parent1c13899154f6f93e8c9ff3e981a90d5f21df2d6b
[SCSI] fc_transport: Check portstates before invoking target scan

When a target scan is initiated from sysfs, we should check the
portstate prior to invoke scsi_scan_target().
Otherwise scsi_scan_target() might oops as the rport might already
been removed from the scsi host and the traversal from the rport to
the scsi_host in scsi_scan_target() will fail.
Also the portstate already told us that communication with the target
has failed, so it's quite pointless to try.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Cc: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
drivers/scsi/scsi_transport_fc.c