Merge branch 'js/plug-leaks' into maint

Fix memory leaks pointed out by Coverity (and people).

* js/plug-leaks: (26 commits)
  checkout: fix memory leak
  submodule_uses_worktrees(): plug memory leak
  show_worktree(): plug memory leak
  name-rev: avoid leaking memory in the `deref` case
  remote: plug memory leak in match_explicit()
  add_reflog_for_walk: avoid memory leak
  shallow: avoid memory leak
  line-log: avoid memory leak
  receive-pack: plug memory leak in update()
  fast-export: avoid leaking memory in handle_tag()
  mktree: plug memory leaks reported by Coverity
  pack-redundant: plug memory leak
  setup_discovered_git_dir(): plug memory leak
  setup_bare_git_dir(): help static analysis
  split_commit_in_progress(): simplify & fix memory leak
  checkout: fix memory leak
  cat-file: fix memory leak
  mailinfo & mailsplit: check for EOF while parsing
  status: close file descriptor after reading git-rebase-todo
  difftool: address a couple of resource/memory leaks
  ...

1 files changed, 6 insertions, 9 deletions

diff --git a/builtin/am.c b/builtin/am.c
index 7d39156ff3..4b89289d1e 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1351,19 +1351,16 @@ static int get_mail_commit_oid(struct object_id *commit_id, const char *mail)
 	struct strbuf sb = STRBUF_INIT;
 	FILE *fp = xfopen(mail, "r");
 	const char *x;
+	int ret = 0;
 
-	if (strbuf_getline_lf(&sb, fp))
-		return -1;
-
-	if (!skip_prefix(sb.buf, "From ", &x))
-		return -1;
-
-	if (get_oid_hex(x, commit_id) < 0)
-		return -1;
+	if (strbuf_getline_lf(&sb, fp) ||
+	    !skip_prefix(sb.buf, "From ", &x) ||
+	    get_oid_hex(x, commit_id) < 0)
+		ret = -1;
 
 	strbuf_release(&sb);
 	fclose(fp);
-	return 0;
+	return ret;
 }
 
 /**