Michael Müller : kernel32: Correctly check for an empty short filename in GetShortPathNameW ( Coverity).

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 803e9cfb66de6283d956868784a19b15cf62b435
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=803e9cfb66de6283d956868784...

Author: Michael Müller 
Date:   Sat May 30 15:36:43 2015 +0200

kernel32: Correctly check for an empty short filename in GetShortPathNameW (Coverity).

---

dlls/kernel32/path.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/kernel32/path.c b/dlls/kernel32/path.c
index f74b952..09b8b7f 100644
--- a/dlls/kernel32/path.c
+++ b/dlls/kernel32/path.c
@@ -528,7 +528,7 @@ DWORD WINAPI GetShortPathNameW( LPCWSTR longpath, LPWSTR shortpath, DWORD shortl

/* In rare cases (like "a.abcd") short path may be longer than original path.
          * Make sure we have enough space in temp buffer. */
-        if (wfd.cAlternateFileName && tmplen < strlenW(wfd.cAlternateFileName))
+        if (wfd.cAlternateFileName[0] && tmplen < strlenW(wfd.cAlternateFileName))
         {
             WCHAR *new_buf;
             buf_len += strlenW(wfd.cAlternateFileName) - tmplen;