macosx/prefswidget: fix initilization

modules/gui/macosx/prefs_widgets.m

@@ -406,8 +406,12 @@ o_textfield = [[NSSecureTextField alloc] initWithFrame: s_rc];              \
 
     if (self != nil) {
         _p_item = p_item;
+        if (p_item) {
             psz_name = p_item->psz_name;
             _type = p_item->i_type;
+        } else {
+            psz_name = NULL;
+        }
         [self setAutoresizingMask:NSViewWidthSizable | NSViewMinYMargin ];
     }
     return (self);
@@ -1940,6 +1944,12 @@ o_textfield = [[NSSecureTextField alloc] initWithFrame: s_rc];              \
 - (id)initWithItem:(module_config_t *)p_item
           withView:(NSView *)parentView
 {
+    self = [super initWithFrame:CGRectZero item:p_item];
+    if (!self) {
+        return self;
+    }
+    self.viewType = CONFIG_ITEM_MODULE_LIST;
+
     BOOL b_by_cat = p_item->i_type == CONFIG_ITEM_MODULE_LIST_CAT;
 
     //Fill our array to know how may items we have...
@@ -2010,7 +2020,6 @@ o_moduleenabled = [NSNumber numberWithBool:NO];\
             }
             module_config_free(p_configlist);
 
-
         } else if (module_provides(p_parser, p_item->psz_type)) {
 
             NSString *o_modulelongname = toNSStr(module_get_name(p_parser, TRUE));
@@ -2079,8 +2088,7 @@ o_moduleenabled = [NSNumber numberWithBool:NO];\
     mainFrame.size.width = mainFrame.size.width - LEFTMARGIN - RIGHTMARGIN;
     mainFrame.origin.x = LEFTMARGIN;
     mainFrame.origin.y = 0;
-    if (self = [super initWithFrame:mainFrame item:p_item]) {
-        self.viewType = CONFIG_ITEM_MODULE_LIST;
+    self.frame = mainFrame;
 
     toolTip = [[VLCStringUtility sharedInstance] wrapString: _NS(p_item->psz_longtext) toWidth: PREFS_WRAP];
 
@@ -2102,7 +2110,7 @@ o_moduleenabled = [NSNumber numberWithBool:NO];\
     [self addSubview: o_textfield];
 
     [self addSubview: o_tableview];
-    }
+
     return self;
 }