Re: [PATCH] spi: Unlock a spinlock before calling into the controller driver.

[Linus Walleij]

On Sat, Jun 23, 2012 at 7:53 AM, Bryan Freed <bfreed@xxxxxxxxxxxx> wrote:

> spi_pump_messages() calls into a controller driver with
> unprepare_transfer_hardware() which is documented as "This may sleep".
> As in the prepare_transfer_hardware() call below, we should release the
> queue_lock spinlock before making the call.
> Rework the logic a bit to hold queue_lock to protect the 'busy' flag,
> then release it to call unprepare_transfer_hardware().
>
> Signed-off-by: Bryan Freed <bfreed@xxxxxxxxxxxx>

Yes, this looks correct to me! Good catch.
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij
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