egl_dri2: cleanup memory leak in dri2_create_context()

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 380bd7b..a5f71ed 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -811,8 +811,9 @@
          api = __DRI_API_GLES3;
          break;
       default:
-	 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
-	 return NULL;
+         _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
+         free(dri2_ctx);
+         return NULL;
       }
       break;
    case EGL_OPENGL_API: