[CIFS] Make cifs_unlink consistent in checks for null inode

Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 77e190d..051b71c 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -100,5 +100,5 @@
 extern const struct export_operations cifs_export_ops;
 #endif /* EXPERIMENTAL */
 
-#define CIFS_VERSION   "1.57"
+#define CIFS_VERSION   "1.58"
 #endif				/* _CIFSFS_H */