puzzles: fix crash when loading a corrupt save

I misread the documentation here, thinking that the pointer would be set to
*point to* a null byte, not to a null pointer itself. [1]

[1]: https://www.chiark.greenend.org.uk/~sgtatham/puzzles/devel/midend.html#identify-game

Change-Id: I9b76bba9b1611dfd8e05d076a69f7554b5b74c53

1 files changed, 1 insertions, 2 deletions

diff --git a/apps/plugins/puzzles/rockbox.c b/apps/plugins/puzzles/rockbox.c
index a10bf7dd5c..eabe739657 100644
--- a/apps/plugins/puzzles/rockbox.c
+++ b/apps/plugins/puzzles/rockbox.c
@@ -3201,9 +3201,8 @@ static bool load_game(void)
     char *game;
     const char *ret = identify_game(&game, read_wrapper, (void*)fd);
 
-    if(!*game && ret)
+    if(!game && ret)
     {
-        sfree(game);
         rb->splash(HZ, ret);
         rb->close(fd);
         return false;