check return values of _swrast_CreateContext, etc

1 files changed, 9 insertions, 4 deletions

diff --git a/src/mesa/drivers/osmesa/osmesa.c b/src/mesa/drivers/osmesa/osmesa.c
index a8e6b12832..7932b90f59 100644
--- a/src/mesa/drivers/osmesa/osmesa.c
+++ b/src/mesa/drivers/osmesa/osmesa.c
@@ -980,10 +980,15 @@ OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
       {
 	 GLcontext *ctx = &osmesa->mesa;
 
-	 _swrast_CreateContext( ctx );
-	 _ac_CreateContext( ctx );
-	 _tnl_CreateContext( ctx );
-	 _swsetup_CreateContext( ctx );
+	 if (!_swrast_CreateContext( ctx ) ||
+             !_ac_CreateContext( ctx ) ||
+             !_tnl_CreateContext( ctx ) ||
+             !_swsetup_CreateContext( ctx )) {
+            _mesa_destroy_visual(osmesa->gl_visual);
+            _mesa_free_context_data(ctx);
+            _mesa_free(osmesa);
+            return NULL;
+         }
 	
 	 _swsetup_Wakeup( ctx );
          hook_in_driver_functions( ctx );