[PATCH] setup.c: reset candidate->work_tree after freeing it

[Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>]

Dangling pointers are usually bad news. Reset it back to NULL.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/setup.c b/setup.c
index 7287779642..d193bee192 100644
--- a/setup.c
+++ b/setup.c
@@ -482,7 +482,7 @@ static int check_repository_format_gently(const char *gitdir, struct repository_
 			inside_work_tree = -1;
 		}
 	} else {
-		free(candidate->work_tree);
+		FREE_AND_NULL(candidate->work_tree);
 	}
 
 	return 0;
-- 
2.17.0.rc2.408.g9d2a3d914e