James Tucker b7cd547315 device: wait for and lock ipc operations during close ...

If an IPC operation is in flight while close starts, it is possible for
both processes to deadlock. Prevent this by taking the IPC lock at the
start of close and for the duration.

Signed-off-by: James Tucker <jftucker@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

2023-06-27 17:43:35 +02:00

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