tests: Fix SCSI debug disks cleanup in SMART tests

Author: vojtechtrefny

tests/smart_test.py

@@ -77,10 +77,10 @@ def _clean_scsi_debug(self):
         try:
             device = self.scsi_debug_dev.split('/')[-1]
             if os.path.exists('/sys/block/' + device):
-                self.write_file('/sys/block/%s/device/delete' % device, '1')
+                write_file('/sys/block/%s/device/delete' % device, '1')
             while os.path.exists(device):
                 time.sleep(0.1)
-            self.run_command('modprobe -r scsi_debug')
+            run_command('modprobe -r scsi_debug')
         except:
             pass
 

tests/smartmontools_test.py

@@ -76,10 +76,10 @@ def _clean_scsi_debug(self):
         try:
             device = self.scsi_debug_dev.split('/')[-1]
             if os.path.exists('/sys/block/' + device):
-                self.write_file('/sys/block/%s/device/delete' % device, '1')
+                write_file('/sys/block/%s/device/delete' % device, '1')
             while os.path.exists(device):
                 time.sleep(0.1)
-            self.run_command('modprobe -r scsi_debug')
+            run_command('modprobe -r scsi_debug')
         except:
             pass