hpsa: do not use a void pointer for scsi_cmd field of struct CommandList

There's no reason for it to be a void *, it should be a struct scsi_cmnd *

Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index 071b64c..3a621c7 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -408,7 +408,7 @@
 	int			   cmd_type;
 	long			   cmdindex;
 	struct completion *waiting;
-	void   *scsi_cmd;
+	struct scsi_cmnd *scsi_cmd;
 	struct work_struct work;
 
 	/*