From 1a7d93ab5396a34d6f7d2713d2e0d0015eb8c00d Mon Sep 17 00:00:00 2001
From: Bryan Gurney <bgurney@redhat.com>
Date: Fri, 17 Nov 2023 18:49:11 -0500
Subject: [PATCH] Refactor dm_devices dictionary construction

---
 testlib/infra.py | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/testlib/infra.py b/testlib/infra.py
index 583b464..1015509 100644
--- a/testlib/infra.py
+++ b/testlib/infra.py
@@ -176,11 +176,13 @@ class SysfsMonitor(unittest.TestCase):
 
     def tearDown(self):
         if SysfsMonitor.verify_sysfs:  # pylint: disable=no-member
-            dm_devices = {}
-            for dmdev in os.listdir("/dev/mapper"):
-                dmdev_path = os.path.join("/dev/mapper", dmdev)
-                dmdev_num = os.path.basename(os.path.realpath(dmdev_path))
-                dm_devices[dmdev_num] = dmdev
+            dev_mapper = "/dev/mapper"
+            dm_devices = {
+                os.path.basename(
+                    os.path.realpath(os.path.join(dev_mapper, dmdev))
+                ): dmdev
+                for dmdev in os.listdir(dev_mapper)
+            }
 
             try:
                 misaligned_devices = []