[SCSI] allow sleeping in ->eh_host_reset_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index fd8af64..17b106b 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -2885,7 +2885,7 @@
  * Return value:
  * 	SUCCESS / FAILED
  **/
-static int ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
+static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
 {
 	struct ipr_ioa_cfg *ioa_cfg;
 	int rc;
@@ -2905,6 +2905,17 @@
 	return rc;
 }
 
+static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
+{
+	int rc;
+
+	spin_lock_irq(cmd->device->host->host_lock);
+	rc = __ipr_eh_host_reset(cmd);
+	spin_unlock_irq(cmd->device->host->host_lock);
+
+	return rc;
+}
+
 /**
  * ipr_eh_dev_reset - Reset the device
  * @scsi_cmd:	scsi command struct