Fix bugs identified by clang static analyzer.

Signed-off-by: Jonathan 'Wolf' Rentzsch <[email protected]>

Author: lapcat

Plugin/CTGradient.m

@@ -53,7 +53,7 @@ - (void)dealloc
   {
   CGFunctionRelease(gradientFunction);
 
-  CTGradientElement *elementToRemove = elementList;
+  CTGradientElement *elementToRemove;
   while(elementList != nil)
 	{
 	elementToRemove = elementList;

Plugin/Plugin.m

@@ -818,7 +818,7 @@ - (void) _drawGearIcon
                 NSColor *startingColor = [NSColor colorWithDeviceWhite:1.0 alpha:1.0];
                 NSColor *endingColor = [NSColor colorWithDeviceWhite:1.0 alpha:0.0];
 
-                [gradient initWithStartingColor:startingColor endingColor:endingColor];
+                gradient = [gradient initWithStartingColor:startingColor endingColor:endingColor];
 
                 // draw gradient behind gear so that it's visible even on dark backgrounds
                 [gradient drawFromCenter:gearImageCenter
@@ -857,7 +857,7 @@ - (void) _drawBackground
     id gradient = [NSClassFromString(@"NSGradient") alloc];
     if (gradient != nil)
     {
-        [gradient initWithStartingColor:startingColor endingColor:endingColor];
+        gradient = [gradient initWithStartingColor:startingColor endingColor:endingColor];
 
         [gradient drawInBezierPath:[NSBezierPath bezierPathWithRect:fillRect] angle:90.0 + ((mouseIsDown && mouseInside) ? 0.0 : 180.0)];
 

Plugin/SparkleManager.m

@@ -30,6 +30,8 @@ of this software and associated documentation files (the "Software"), to deal
 #import "CTFUserDefaultsController.h"
 #import "CTFPreferencesDictionary.h"
 
+#import <objc/runtime.h>
+
 // NSUserDefaults keys
 static NSString *sAutomaticallyCheckForUpdates = @"checkForUpdatesOnFirstLoad";