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authorHannes Reinecke <hare@suse.de>2007-06-14 17:16:45 +0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-06-18 01:03:11 +0400
commit0d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6 (patch)
tree21c82df82bc70bc3e8439ef0ac34a10b0dfee589 /drivers/scsi/scsi_transport_fc.c
parent1c13899154f6f93e8c9ff3e981a90d5f21df2d6b (diff)
downloadlinux-0d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6.tar.xz
[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>
Diffstat (limited to 'drivers/scsi/scsi_transport_fc.c')
-rw-r--r--drivers/scsi/scsi_transport_fc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 4953f0dca029..e8825709797e 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -1943,6 +1943,9 @@ static int fc_user_scan(struct Scsi_Host *shost, uint channel,
if (rport->scsi_target_id == -1)
continue;
+ if (rport->port_state != FC_PORTSTATE_ONLINE)
+ continue;
+
if ((channel == SCAN_WILD_CARD || channel == rport->channel) &&
(id == SCAN_WILD_CARD || id == rport->scsi_target_id)) {
scsi_scan_target(&rport->dev, rport->channel,