On Wed, Feb 28, 2018 at 7:57 AM, Samuel Holland <[email protected]> wrote: > If a reception IRQ is pending when a mailbox channel is shut down (for > example, if the controller uses threaded interrupts), it is possible for > mbox_chan_received_data to be called while chan->cl is NULL. > We can add a check in mailbox.c, but that is like shoving it under the carpet. How does your code look like? mbox_chan_received_data() is meant to be called from interrupt context as its documentation says. Also the controller driver is responsible for ceasing any transient xfer before returning from shutdown() callback.
Cheers!
