On 08/31/2012 03:03 PM, Ian Romanick wrote:
> From: Ian Romanick <ian.d.roman...@intel.com>
> 
> Otherwise intelDestroyContext would try to dereference the pointer to
> freed memory.
> 
> NOTE: This is a candidate for the 9.0 branch.
> 
> Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54301
> ---
>  src/mesa/drivers/dri/i965/brw_context.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/src/mesa/drivers/dri/i965/brw_context.c 
> b/src/mesa/drivers/dri/i965/brw_context.c
> index 4e5aed6..ab485c3 100644
> --- a/src/mesa/drivers/dri/i965/brw_context.c
> +++ b/src/mesa/drivers/dri/i965/brw_context.c
> @@ -149,6 +149,7 @@ brwCreateContext(int api,
>                         sharedContextPrivate, &functions )) {
>        printf("%s: failed to init intel context\n", __FUNCTION__);
>        FREE(brw);
> +      driContextPriv->driverPrivate = NULL;
>        *error = __DRI_CTX_ERROR_NO_MEMORY;
>        return false;
>     }

I had a little bit of a hard time figuring out where the NULL check is.
 It looks like glXDestroyContext() checks.

I doubt it can hurt, anyway.
Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>

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