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Diffstat (limited to 'builtin/commit.c')
-rw-r--r--builtin/commit.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/builtin/commit.c b/builtin/commit.c
index 004b816..7d2e0b6 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -351,7 +351,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix
if (write_locked_index(&the_index, &index_lock, 0))
die(_("unable to create temporary index"));
- old_index_env = getenv(INDEX_ENVIRONMENT);
+ old_index_env = xstrdup_or_null(getenv(INDEX_ENVIRONMENT));
setenv(INDEX_ENVIRONMENT, get_lock_file_path(&index_lock), 1);
if (interactive_add(argc, argv, prefix, patch_interactive) != 0)
@@ -361,6 +361,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix
setenv(INDEX_ENVIRONMENT, old_index_env, 1);
else
unsetenv(INDEX_ENVIRONMENT);
+ FREE_AND_NULL(old_index_env);
discard_cache();
read_cache_from(get_lock_file_path(&index_lock));