Fix mkDirRecursively

Change-Id: Ie09fd666ca208994f22e9f83af6072f4d5e6aa1a

Fix mkDirRecursively
Change-Id: Ie09fd666ca208994f22e9f83af6072f4d5e6aa1a
0b7e7876 · xuwei06 · c785975b · 0b7e7876
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paddle/utils/Util.cpp paddle/utils/Util.cpp +1 -0

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--- a/paddle/utils/Util.cpp
+++ b/paddle/utils/Util.cpp
@@ -289,6 +289,7 @@ void mkDir(const char* filename) {
 void mkDirRecursively(const char* dir) {
  struct stat sb;
+  if (*dir == 0) return;  // empty string
  if (!stat(dir, &sb)) return;
  mkDirRecursively(path::dirname(dir).c_str());