disk plugin: release udev-based name. Fixes #1781

diff --git a/src/disk.c b/src/disk.c
index 292f6e2..9965bca 100644 (file)
--- a/src/disk.c
+++ b/src/disk.c
@@ -896,7 +896,7 @@ static int disk_read (void)
                {
 #if HAVE_LIBUDEV
                        /* release udev-based alternate name, if allocated */
-                       sfree (output_name);
+                       sfree (alt_name);
 #endif
                        continue;
                }