From: Thomas Weißschuh <thomas@t-8ch.de>
Date: Sun, 24 Dec 2023 12:05:20 +0000 (+0100)
Subject: libmount: (tests) fix --filesystems crash on invalid argument
X-Git-Tag: v2.40-rc1~84^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2f43ebcda0ba8bea82ae65040cea76305077dbab;p=thirdparty%2Futil-linux.git

libmount: (tests) fix --filesystems crash on invalid argument

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
---

diff --git a/libmount/src/utils.c b/libmount/src/utils.c
index b6d95696ad..056c5d4fb0 100644
--- a/libmount/src/utils.c
+++ b/libmount/src/utils.c
@@ -1364,7 +1364,7 @@ static int test_filesystems(struct libmnt_test *ts __attribute__((unused)),
 		return -1;
 
 	rc = mnt_get_filesystems(&filesystems, argc == 2 ? argv[1] : NULL);
-	if (!rc) {
+	if (!rc && filesystems) {
 		char **p;
 		for (p = filesystems; *p; p++)
 			printf("%s\n", *p);