[CIFS] Fix missing entries in search results when very long file names and

more than 50 (or so) of such long search entries in the directory.  FindNext
could send corrupt last byte of resume name when resume key was a few hundred
bytes long file name or longer.

Fixes Samba Bug # 2932

Signed-off-by: Steve French (sfrench@us.ibm.com)

fs/cifs/cifssmb.c

@@ -2628,6 +2628,9 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
 	if(name_len < PATH_MAX) {
 		memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len);
 		byte_count += name_len;
+		/* 14 byte parm len above enough for 2 byte null terminator */
+		pSMB->ResumeFileName[name_len] = 0;
+		pSMB->ResumeFileName[name_len+1] = 0;
 	} else {
 		rc = -EINVAL;
 		goto FNext2_err_exit;