From: Hannes Reinecke <hare@suse.de>
To: James Bottomley <james.bottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org, Hannes Reinecke <hare@suse.de>
Subject: [PATCH 5/7] scsi_dh: Check for sdev state in store_dh_state()
Date: Wed, 24 Aug 2011 10:51:17 +0200 [thread overview]
Message-ID: <1314175879-16565-6-git-send-email-hare@suse.de> (raw)
In-Reply-To: <1314175879-16565-1-git-send-email-hare@suse.de>
Avoid attaching a hardware handler to a device which is
already scheduled for deletion.
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/device_handler/scsi_dh.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
index 458521d..520bcf0 100644
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ b/drivers/scsi/device_handler/scsi_dh.c
@@ -190,6 +190,10 @@ store_dh_state(struct device *dev, struct device_attribute *attr,
struct scsi_device_handler *scsi_dh;
int err = -EINVAL;
+ if (sdev->sdev_state == SDEV_CANCEL ||
+ sdev->sdev_state == SDEV_DEL)
+ return -ENODEV;
+
if (!sdev->scsi_dh_data) {
/*
* Attach to a device handler
--
1.6.0.2
next prev parent reply other threads:[~2011-08-24 8:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-24 8:51 [PATCH 0/7] ALUA device handler update Hannes Reinecke
2011-08-24 8:51 ` [PATCH 1/7] scsi_dh_alua: Evaluate TPGS setting from inquiry data Hannes Reinecke
2011-08-24 8:51 ` [PATCH 2/7] scsi_dh: Fixup kernel-doc comments Hannes Reinecke
2011-08-24 8:51 ` [PATCH 3/7] scsi_dh: Implement match callback function Hannes Reinecke
2011-08-24 8:51 ` [PATCH 4/7] scsi_dh_alua: always update TPGS status on activate Hannes Reinecke
2011-08-24 8:51 ` Hannes Reinecke [this message]
2011-08-24 8:51 ` [PATCH 6/7] Erroneous TPG ID check in SCSI ALUA Handler Hannes Reinecke
2011-08-24 8:51 ` [PATCH 7/7] scsi_dh_alua: Decrease retry interval Hannes Reinecke
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