[CIFS] Fix readdir of large directories for backlevel servers

(were not setting all of resume key)

Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 71e86c3..b0e5db1 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -946,6 +946,7 @@
 		filename = &pFindData->FileName[0];
 		/* one byte length, no name conversion */
 		len = (unsigned int)pFindData->FileNameLength;
+		cifsFile->srch_inf.resume_key = pFindData->ResumeKey;
 	} else {
 		cFYI(1,("Unknown findfirst level %d",level));
 		return -EINVAL;