commit f5c58ad1536d3b26b1245b4d7fba2bebfdacff94
from: Stefan Sperling <stsp@stsp.name>
date: Sun May 12 22:05:59 2019 UTC

fix leftover lockfiles from parse_ref_file()

commit - a875589a9d2af343438e8ea0ba7c507db05f5623
commit + f5c58ad1536d3b26b1245b4d7fba2bebfdacff94
blob - 3f03033d5a12dcd98b39c6e2535e82d6fe99d0b5
blob + ff09bbce69de69bf78d62bc157725924fc2ff292
--- lib/reference.c
+++ lib/reference.c
@@ -174,25 +174,38 @@ parse_ref_file(struct got_reference **ref, const char 
 	}
 
 	f = fopen(abspath, "rb");
-	if (f == NULL)
+	if (f == NULL) {
+		if (lock)
+			got_lockfile_unlock(lf);
 		return NULL;
+	}
 
 	line = fparseln(f, &len, NULL, delim, 0);
 	if (line == NULL) {
 		err = got_error(GOT_ERR_BAD_REF_DATA);
+		if (lock)
+			got_lockfile_unlock(lf);
 		goto done;
 	}
 
 	err = parse_ref_line(ref, name, line);
-	if (err == NULL && lf)
-		(*ref)->lf = lf;
+	if (lock) {
+		if (err)
+			got_lockfile_unlock(lf);
+		else {
+			if (*ref)
+				(*ref)->lf = lf;
+			else
+				got_lockfile_unlock(lf);
+		}
+	}
 done:
 	free(line);
 	if (fclose(f) != 0 && err == NULL) {
 		err = got_error_prefix_errno("fclose");
-		if (lf)
-			got_lockfile_unlock(lf);
 		if (*ref) {
+			if (lock)
+				got_ref_unlock(*ref);
 			got_ref_close(*ref);
 			*ref = NULL;
 		}