X-Git-Url: https://git.reactos.org/?p=reactos.git;a=blobdiff_plain;f=dll%2Fwin32%2Fkernel32%2Fclient%2Ffile%2Fdisk.c;h=1b7d1e3a9d8cc4ad93dff6649ced4d4f87317436;hp=1ba1b7354916f9056e741dd14a5a06e7ff6f7c18;hb=8b6518139db31655a395a1547dd475f06f79b934;hpb=1e2424ee98bd12d6a5a7ebffdfa138546a5c7a5b

diff --git a/dll/win32/kernel32/client/file/disk.c b/dll/win32/kernel32/client/file/disk.c
index 1ba1b735491..1b7d1e3a9d8 100644
--- a/dll/win32/kernel32/client/file/disk.c
+++ b/dll/win32/kernel32/client/file/disk.c
@@ -359,18 +359,23 @@ GetDiskFreeSpaceExA(IN LPCSTR lpDirectoryName OPTIONAL,
                     OUT PULARGE_INTEGER lpTotalNumberOfBytes,
                     OUT PULARGE_INTEGER lpTotalNumberOfFreeBytes)
 {
-    PWCHAR DirectoryNameW=NULL;
+    PCSTR RootPath;
+    PUNICODE_STRING RootPathU;
 
-    if (lpDirectoryName)
+    RootPath = lpDirectoryName;
+    if (RootPath == NULL)
     {
-        if (!(DirectoryNameW = FilenameA2W(lpDirectoryName, FALSE)))
-            return FALSE;
+        RootPath = "\\";
+    }
+
+    RootPathU = Basep8BitStringToStaticUnicodeString(RootPath);
+    if (RootPathU == NULL)
+    {
+        return FALSE;
     }
 
-    return GetDiskFreeSpaceExW (DirectoryNameW ,
-                                lpFreeBytesAvailableToCaller,
-                                lpTotalNumberOfBytes,
-                                lpTotalNumberOfFreeBytes);
+    return GetDiskFreeSpaceExW(RootPathU->Buffer, lpFreeBytesAvailableToCaller,
+                              lpTotalNumberOfBytes, lpTotalNumberOfFreeBytes);
 }
 
 /*