Merge pull request #1998 from DinsFire64/memleak

Small memory fixes.

src/RageSurface_Load_PNG.cpp

@@ -123,7 +123,6 @@ static RageSurface *RageSurface_Load_PNG( RageFile *f, const char *fn, char erro
 		CHECKPOINT_M("Header only png about to be processed.");
 		img = CreateSurfaceFrom( width, height, 32, 0, 0, 0, 0, nullptr, width*4 );
 		png_destroy_read_struct( &png, &info_ptr, nullptr );
-
 		return img;
 	}
 
@@ -255,6 +254,11 @@ static RageSurface *RageSurface_Load_PNG( RageFile *f, const char *fn, char erro
 	png_read_end( png, info_ptr );
 	png_destroy_read_struct( &png, &info_ptr, nullptr );
 
+	if(row_pointers != nullptr)
+	{
+		delete[] row_pointers;
+	}
+
 	return img;
 }
 

src/arch/InputHandler/LinuxInputManager.cpp

@@ -80,6 +80,8 @@ LinuxInputManager::LinuxInputManager()
 	// Sort devices for more consistent numbering.
 	std::sort(m_vsPendingEventDevices.begin(), m_vsPendingEventDevices.end(), cmpDevices);
 	std::sort(m_vsPendingJoystickDevices.begin(), m_vsPendingJoystickDevices.end(), cmpDevices);
+
+	closedir(sysClassInput);
 }
 
 void LinuxInputManager::InitDriver(InputHandler_Linux_Event* driver)

src/archutils/Unix/SignalHandler.cpp

@@ -3,6 +3,7 @@
 #include "RageLog.h"
 #include "SignalHandler.h"
 #include "GetSysInfo.h"
+#include <memory>
 
 #if defined(HAVE_LIBPTHREAD)
 #include "archutils/Common/PthreadHelpers.h"
@@ -31,7 +32,7 @@ static int find_stack_direction2( char *p ) NOINLINE;
 static int find_stack_direction() NOINLINE;
 
 static vector<SignalHandler::handler> handlers;
-SaveSignals *saved_sigs;
+unique_ptr<SaveSignals> saved_sigs;
 
 static int signals[] =
 {
@@ -143,10 +144,10 @@ static void *CreateStack( int size )
 /* Hook up events to fatal signals, so we can clean up if we're killed. */
 void SignalHandler::OnClose( handler h )
 {
-	if( saved_sigs == nullptr )
+	//if the unique_ptr has not been set, then enter.
+	if( !saved_sigs )
 	{
-		saved_sigs = new SaveSignals;
+		saved_sigs.reset(new SaveSignals());
-
 		bool bUseAltSigStack = true;
 
 #if defined(LINUX)