CIFS: Use separate var for the number of bytes got in async read

and don't mix it with the number of bytes that was requested.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 1b3f0ae..1781a03 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1513,7 +1513,7 @@
 		return length;
 
 	server->total_read += length;
-	rdata->bytes = length;
+	rdata->got_bytes = length;
 
 	cifs_dbg(FYI, "total_read=%u buflen=%u remaining=%u\n",
 		 server->total_read, buflen, data_len);
@@ -1556,8 +1556,8 @@
 					 rc);
 		}
 		/* FIXME: should this be counted toward the initiating task? */
-		task_io_account_read(rdata->bytes);
-		cifs_stats_bytes_read(tcon, rdata->bytes);
+		task_io_account_read(rdata->got_bytes);
+		cifs_stats_bytes_read(tcon, rdata->got_bytes);
 		break;
 	case MID_REQUEST_SUBMITTED:
 	case MID_RETRY_NEEDED: