diff --git a/src/d_main.c b/src/d_main.c
index 5acfb610..85b363e0 100644
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -187,35 +187,6 @@ UINT8 shiftdown = 0; // 0x1 left, 0x2 right
 UINT8 ctrldown = 0; // 0x1 left, 0x2 right
 UINT8 altdown = 0; // 0x1 left, 0x2 right
 boolean capslock = 0;	// gee i wonder what this does.
-//
-// D_ModifierKeyResponder
-// Sets global shift/ctrl/alt variables, never actually eats events
-//
-static inline void D_ModifierKeyResponder(event_t *ev)
-{
-	if (ev->type == ev_keydown || ev->type == ev_console) switch (ev->data1)
-	{
-		case KEY_LSHIFT: shiftdown |= 0x1; return;
-		case KEY_RSHIFT: shiftdown |= 0x2; return;
-		case KEY_LCTRL: ctrldown |= 0x1; return;
-		case KEY_RCTRL: ctrldown |= 0x2; return;
-		case KEY_LALT: altdown |= 0x1; return;
-		case KEY_RALT: altdown |= 0x2; return;
-		case KEY_CAPSLOCK: capslock = !capslock; return;
-
-		default: return;
-	}
-	else if (ev->type == ev_keyup) switch (ev->data1)
-	{
-		case KEY_LSHIFT: shiftdown &= ~0x1; return;
-		case KEY_RSHIFT: shiftdown &= ~0x2; return;
-		case KEY_LCTRL: ctrldown &= ~0x1; return;
-		case KEY_RCTRL: ctrldown &= ~0x2; return;
-		case KEY_LALT: altdown &= ~0x1; return;
-		case KEY_RALT: altdown &= ~0x2; return;
-		default: return;
-	}
-}
 
 //
 // D_ProcessEvents
@@ -282,7 +253,7 @@ static void D_Display(void)
 	{
 		if (nodrawers)
 			return; // for comparative timing/profiling
-		
+
 		// check for change of screen size (video mode)
 		if (setmodeneeded && !wipe)
 			SCR_SetMode(); // change video mode
diff --git a/src/hardware/r_opengl/r_opengl.c b/src/hardware/r_opengl/r_opengl.c
index 5dc46099..e0503ba0 100644
--- a/src/hardware/r_opengl/r_opengl.c
+++ b/src/hardware/r_opengl/r_opengl.c
@@ -823,7 +823,7 @@ EXPORT boolean HWRAPI(LoadShaders) (void)
 #ifdef GL_SHADERS
 	GLuint gl_vertShader, gl_fragShader;
 	GLint i, result;
-	
+
 	if (!pglUseProgram) return false;
 
 	gl_customvertexshaders[0] = NULL;
@@ -2002,11 +2002,11 @@ EXPORT void HWRAPI(RenderBatches) (int *sNumPolys, int *sNumVerts, int *sNumCall
 		boolean stopFlag = false;
 		boolean changeState = false;
 		boolean changeShader = false;
-		GLuint nextShader;
+		GLuint nextShader = 0U;
 		boolean changeTexture = false;
-		GLuint nextTexture;
+		GLuint nextTexture = 0U;
 		boolean changePolyFlags = false;
-		FBITFIELD nextPolyFlags;
+		FBITFIELD nextPolyFlags = 0U;
 		boolean changeSurfaceInfo = false;
 		FSurfaceInfo nextSurfaceInfo;
 
@@ -2307,7 +2307,7 @@ EXPORT void HWRAPI(DrawPolygon) (FSurfaceInfo *pSurf, FOutVector *pOutVerts, FUI
 
 				pglColor4ubv((GLubyte*)&pSurf->PolyColor.s);
 			}
-			
+
 			// Tint color
 			tint.red   = byte2float[pSurf->TintColor.s.red];
 			tint.green = byte2float[pSurf->TintColor.s.green];
diff --git a/src/r_plane.c b/src/r_plane.c
index db5bfbda..659481ec 100644
--- a/src/r_plane.c
+++ b/src/r_plane.c
@@ -402,7 +402,7 @@ static visplane_t *new_visplane(unsigned hash)
 	visplane_t *check = freetail;
 	if (!check)
 	{
-		check = calloc(2, sizeof (*check));
+		check = calloc(1, sizeof (*check));
 		if (check == NULL) I_Error("%s: Out of memory", "new_visplane"); // FIXME: ugly
 	}
 	else