Nikolay Sivov : regedit: Fix a crash when exporting from top level key.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 02b178e79134298d10daa17e1e9185d5d270a832
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=02b178e79134298d10daa17e1e...

Author: Nikolay Sivov <nsivov(a)codeweavers.com>
Date:   Thu May 18 17:08:56 2017 +0300

regedit: Fix a crash when exporting from top level key.

Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 programs/regedit/regproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/programs/regedit/regproc.c b/programs/regedit/regproc.c
index 01c9c76..10b4a38 100644
--- a/programs/regedit/regproc.c
+++ b/programs/regedit/regproc.c
@@ -1232,7 +1232,7 @@ BOOL export_registry_key(WCHAR *file_name, WCHAR *reg_key_name, DWORD format)
             output_message(STRING_INCORRECT_REG_CLASS, reg_key_name);
             exit(1);
         }
-        if (!branch_name[0]) {
+        if (!branch_name || !*branch_name) {
             /* no branch - registry class is specified */
             file = REGPROC_open_export_file(file_name, unicode);
             export_hkey(file, reg_key_class,