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intel: added screen->dri2.loader null pointer check in intel_flush() 

Fixes segfaults when rendering to front buffer.
This commit is contained in:
Brian Paul 2009-04-10 08:35:21 -06:00
parent 88999de8b7
commit ded05d32d5
1 changed files with 2 additions and 1 deletions
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3
src/mesa/drivers/dri/intel/intel_context.c
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@ -400,7 +400,8 @@ intel_flush(GLcontext *ctx, GLboolean needs_mi_flush)
if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) {
__DRIscreen *const screen = intel->intelScreen->driScrnPriv;
if ((screen->dri2.loader->base.version >= 2)
if (screen->dri2.loader &&
(screen->dri2.loader->base.version >= 2)
&& (screen->dri2.loader->flushFrontBuffer != NULL)) {
(*screen->dri2.loader->flushFrontBuffer)(intel->driDrawable,
intel->driDrawable->loaderPrivate);