Be consistent with return statements when only returning None.

utils/apparmor/aa.py

@@ -575,10 +575,10 @@ def autodep(bin_name, pname=''):
         # if not bin_full:
         #    bin_full = bin_name
         # if not bin_full.startswith('/'):
-        #     return None
+        #     return
         # Return if executable path not found
         if not bin_full:
-            return None
+            return
     else:
         bin_full = pname  # for named profiles
 
@@ -1773,7 +1773,7 @@ def read_inactive_profiles(skip_profiles=[]):
     read_inactive_profiles.already_read = True
 
     if not os.path.exists(extra_profile_dir):
-        return None
+        return
     try:
         os.listdir(profile_dir)
     except:
@@ -1799,7 +1799,7 @@ def read_profile(file, active_profile):
     except IOError as e:
         aaui.UI_Important('WARNING: Error reading file %s, skipping.\n    %s' % (file, e))
         debug_logger.debug("read_profile: can't read %s - skipping" % file)
-        return None
+        return
 
     profile_data = parse_profile_data(data, file, 0, True)
 
@@ -2404,7 +2404,7 @@ def propose_file_rules(profile_obj, rule_obj):
 
 def reload_base(bin_path):
     if not check_for_apparmor():
-        return None
+        return
 
     prof_filename = get_profile_filename_from_profile_name(bin_path, True)
 
@@ -2425,10 +2425,8 @@ def reload_profile(prof_filename, raise_exc=False):
 
 def reload(bin_path):
     bin_path = find_executable(bin_path)
-    if not bin_path:
-        return None
-
-    return reload_base(bin_path)
+    if bin_path:
+        reload_base(bin_path)
 
 
 def get_include_data(filename):

utils/apparmor/logparser.py

@@ -156,11 +156,11 @@ class ReadLog:
             raise AppArmorBug('aamode is UNKNOWN - %s' % e['type'])  # should never happen
 
         if aamode in ('AUDIT', 'STATUS', 'ERROR'):
-            return None
+            return
 
         # Skip if AUDIT event was issued due to a change_hat in unconfined mode
         if not e.get('profile', False):
-            return None
+            return
 
         full_profile = e['profile']  # full, nested profile name
         self.init_hashlog(aamode, full_profile)
@@ -172,7 +172,7 @@ class ReadLog:
         profile, hat = split_name(e['profile'])
 
         if profile != 'null-complain-profile' and not self.profile_exists(profile):
-            return None
+            return
         if e['operation'] == 'exec':
             if not e['name']:
                 raise AppArmorException('exec without executed binary')
@@ -181,7 +181,7 @@ class ReadLog:
                 e['name2'] = ''  # exec events in enforce mode don't have target=...
 
             self.hashlog[aamode][full_profile]['exec'][e['name']][e['name2']] = True
-            return None
+            return
 
         elif self.op_type(e) == 'file':
             # Map c (create) and d (delete) to w (logging is more detailed than the profile language)
@@ -212,45 +212,45 @@ class ReadLog:
                 else:
                     raise AppArmorException(_('Log contains unknown mode %s') % dmask)
 
-            return None
+            return
 
         elif e['operation'] == 'capable':
             self.hashlog[aamode][full_profile]['capability'][e['name']] = True
-            return None
+            return
 
         elif self.op_type(e) == 'net':
             self.hashlog[aamode][full_profile]['network'][e['family']][e['sock_type']][e['protocol']] = True
-            return None
+            return
 
         elif e['operation'] == 'change_hat':
             if e['error_code'] == 1 and e['info'] == 'unconfined can not change_hat':
-                return None
+                return
 
             self.hashlog[aamode][full_profile]['change_hat'][e['name2']] = True
-            return None
+            return
 
         elif e['operation'] == 'change_profile':
             self.hashlog[aamode][full_profile]['change_profile'][e['name2']] = True
-            return None
+            return
 
         elif e['operation'] == 'ptrace':
             if not e['peer']:
                 self.debug_logger.debug('ignored garbage ptrace event with empty peer')
-                return None
+                return
             if not e['denied_mask']:
                 self.debug_logger.debug('ignored garbage ptrace event with empty denied_mask')
-                return None
+                return
 
             self.hashlog[aamode][full_profile]['ptrace'][e['peer']][e['denied_mask']] = True
-            return None
+            return
 
         elif e['operation'] == 'signal':
             self.hashlog[aamode][full_profile]['signal'][e['peer']][e['denied_mask']][e['signal']] = True
-            return None
+            return
 
         elif e['operation'].startswith('dbus_'):
             self.hashlog[aamode][full_profile]['dbus'][e['denied_mask']][e['bus']][e['path']][e['name']][e['interface']][e['member']][e['peer_profile']] = True
-            return None
+            return
 
         else:
             self.debug_logger.debug('UNHANDLED: %s' % e)