Added more missing decDisplay()

src/native/linux/org_lwjgl_input_Cursor.cpp

@@ -60,8 +60,11 @@ JNIEXPORT void JNICALL Java_org_lwjgl_input_Cursor_nCreateCursor
 	XcursorPixel *pixels = (XcursorPixel *)env->GetDirectBufferAddress(image_buffer) + images_offset;
 	int stride = width*height;
 	XcursorImages *cursor_images = XcursorImagesCreate(num_images);
-	if (cursor_images == NULL)
+	if (cursor_images == NULL) {
+		decDisplay();
 		throwException(env, "Could not allocate cursor.");
+		return;
+	}
 	cursor_images->nimage = num_images;
 	for (int i = 0; i < num_images; i++) {
 		XcursorImage *cursor_image = XcursorImageCreate(width, height);

src/native/linux/org_lwjgl_input_Mouse.cpp

@@ -249,6 +249,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nCreate
 	for (i = 0; i < NUM_BUTTONS; i++)
 		buttons[i] = 0;
 	if (!blankCursor()) {
+		decDisplay();
 		throwException(env, "Could not create blank cursor");
 		return;
 	}

src/native/linux/org_lwjgl_opengl_Pbuffer.cpp

@@ -216,6 +216,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_opengl_Pbuffer_nCreate(JNIEnv *env, jclass
 					  None, None};
 
 	if (env->GetDirectBufferCapacity(handle_buffer) < sizeof(PbufferInfo)) {
+		decDisplay();
 		throwException(env, "Handle buffer not large enough");
 		return;
 	}