[SCSI] fix use after potential free in scsi_remove_device

Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
git-mirror · Sep 16, 2005 · 5419500 · 5419500
1 parent b568355
commit 5419500
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
@@ -707,9 +707,11 @@ void __scsi_remove_device(struct scsi_device *sdev)
  **/
 void scsi_remove_device(struct scsi_device *sdev)
 {
-	down(&sdev->host->scan_mutex);
+	struct Scsi_Host *shost = sdev->host;
+
+	down(&shost->scan_mutex);
 	__scsi_remove_device(sdev);
-	up(&sdev->host->scan_mutex);
+	up(&shost->scan_mutex);
 }
 EXPORT_SYMBOL(scsi_remove_device);