Zebediah Figura : krnl386.exe16: Fail int 21, 4e if the volume label is an empty string.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 6de3c8f1a8428d45849c89637956ac87ef7a7691
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=6de3c8f1a8428d45849c89637956ac87ef7a7691

Author: Zebediah Figura <z.figura12 at gmail.com>
Date:   Thu Jul 20 23:21:09 2017 -0500

krnl386.exe16: Fail int 21, 4e if the volume label is an empty string.

Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/krnl386.exe16/int21.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/krnl386.exe16/int21.c b/dlls/krnl386.exe16/int21.c
index 308fc49..6455b13 100644
--- a/dlls/krnl386.exe16/int21.c
+++ b/dlls/krnl386.exe16/int21.c
@@ -3876,6 +3876,7 @@ static unsigned INT21_FindHelper(LPCWSTR fullPath, unsigned drive, unsigned coun
         if (count) return 0;
         path[0] = drive + 'A';
         if (!GetVolumeInformationW(path, entry->cAlternateFileName, 13, NULL, NULL, NULL, NULL, 0)) return 0;
+        if (!entry->cAlternateFileName[0]) return 0;
         RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftCreationTime );
         RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftLastAccessTime );
         RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftLastWriteTime );