scsi: handle command allocation failure in scsi_reset_provider

Christoph Hellwig · Christoph Hellwig · commit 95eeb5f5880c · 2014-05-19T12:35:10.000+02:00
Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Reviewed-by: Nicholas Bellinger &lt;nab@linux-iscsi.org&gt;
Reviewed-by: Mike Christie &lt;michaelc@cs.wisc.edu&gt;
Reviewed-by: Hannes Reinecke &lt;hare@suse.de&gt;
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
@@ -2306,6 +2306,12 @@ scsi_reset_provider(struct scsi_device *dev, int flag)
 	}
 
 	scmd = scsi_get_command(dev, GFP_KERNEL);
+	if (!scmd) {
+		rtn = FAILED;
+		put_device(&dev->sdev_gendev);
+		goto out_put_autopm_host;
+	}
+
 	blk_rq_init(NULL, &req);
 	scmd->request = &req;
 
