[LV2] Fwd: [patch] Add null check for frame ref in lv2_atom_forge_raw

[Wladimir]

Re-send: subscription to mailing list should be in order now

Hello,

It's currently possible for a overflow of the forge buffer to result
in a NULL deference in lv2_atom_forge_raw.

I'm not sure if this is by design - are we supposed to manually check
the forge buffer before every write? in any case, the attached patch
adds a check so that everything submitted after the buffer is full
amounts to a no-op, as I think is the intention.

Wladimir
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