lib/sysfs: fix prefix use in sysfs_devname_is_hidden()

Addresses: https://github.com/karelzak/util-linux/issues/1062 Signed-off-by: Karel Zak <kzak@redhat.com>
2020-06-19 10:06:25 +02:00 · 2020-06-19 10:06:25 +02:00 · 51355bea70
parent 4bee67e2d1
commit 51355bea70
1 changed files with 3 additions and 0 deletions
--- a/lib/sysfs.c
+++ b/lib/sysfs.c
@ -847,6 +847,9 @@ int sysfs_devname_is_hidden(const char *prefix, const char *name)

 	if (strncmp("/dev/", name, 5) == 0)
 		return 0;
+
+	if (!prefix)
+		prefix = "";
 	/*
 	 * Create path to /sys/block/<name>/hidden
 	 */