X11: Add NULL checks in work area retrieval

Related to #1322.
ago%!(EXTRA string=7 years) · bea4818030
parent f1d40fa046
commit bea4818030
1 changed files with 9 additions and 4 deletions
--- a/src/x11_monitor.c
+++ b/src/x11_monitor.c
@ -350,10 +350,15 @@ void _glfwPlatformGetMonitorWorkarea(_GLFWmonitor* monitor, int* xpos, int* ypos

        _glfwGetWindowPropertyX11(_glfw.x11.root, _glfw.x11.NET_WORKAREA, XA_CARDINAL, (unsigned char**) &extents);

-        *xpos = extents[0];
-        *ypos = extents[1];
-        *width = extents[2];
-        *height = extents[3];
+        if (xpos)
+            *xpos = extents[0];
+        if (xpos)
+            *ypos = extents[1];
+        if (xpos)
+            *width = extents[2];
+        if (xpos)
+            *height = extents[3];
+
        XFree(extents);
    }
 }