glx: Check that swap_buffers_reply is non-NULL before using it
Check that the return value from xcb_dri2_swap_buffers_reply is non-NULL before accessing the struct members. Note: This is a candidate for the 9.0 branch. Reviewed-by: Brian Paul <brianp@vmware.com>
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@ -789,9 +789,11 @@ dri2XcbSwapBuffers(Display *dpy,
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swap_buffers_reply =
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xcb_dri2_swap_buffers_reply(c, swap_buffers_cookie, NULL);
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if (swap_buffers_reply) {
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ret = merge_counter(swap_buffers_reply->swap_hi,
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swap_buffers_reply->swap_lo);
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free(swap_buffers_reply);
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}
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return ret;
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}
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