Minor change in detachImage() for Xcb, Xlib, Wayland WSIs

src/WSI/WaylandSurfaceKHR.cpp

@@ -92,7 +92,7 @@ void WaylandSurfaceKHR::detachImage(PresentImage *image)
 		munmap(wlImage->data, extent.height * stride);
 		wl_buffer_destroy(wlImage->buffer);
 		delete wlImage;
-		imageMap.erase(image);
+		imageMap.erase(it);
 	}
 }
 

src/WSI/XcbSurfaceKHR.cpp

@@ -151,7 +151,7 @@ void XcbSurfaceKHR::detachImage(PresentImage *image)
 	if(it != graphicsContexts.end())
 	{
 		libXcb->xcb_free_gc(connection, it->second);
-		graphicsContexts.erase(image);
+		graphicsContexts.erase(it);
 	}
 }
 

src/WSI/XlibSurfaceKHR.cpp

@@ -77,7 +77,7 @@ void XlibSurfaceKHR::detachImage(PresentImage *image)
 		XImage *xImage = it->second;
 		xImage->data = nullptr;  // the XImage does not actually own the buffer
 		XDestroyImage(xImage);
-		imageMap.erase(image);
+		imageMap.erase(it);
 	}
 }