On Wed, 12 Dec 2007 18:00:12 -0800
Geoff Levand <[EMAIL PROTECTED]> wrote:

> > This stray down would cause a permanent sleep which doesn't seem correct. 
> > The other uses of this semaphore appear fairly mutex like it's even 
> > initialized
> > with init_MUTEX() ..  So here a patch for removing this one down().
> > 
> > Signed-off-by: Daniel Walker <[EMAIL PROTECTED]>
> > 
> > ---
> >  drivers/ps3/ps3-vuart.c |    1 -
> >  1 file changed, 1 deletion(-)
> 
> 
> Signed-off-by: Geoff Levand <[EMAIL PROTECTED]>
> 
> 
> Looks, good. 

Looks bad to me.

> Andrew, Please apply.

The current code:

        if (result) {
                dev_dbg(&dev->core, "%s:%d: drv->probe failed\n",
                        __func__, __LINE__);
                down(&vuart_bus_priv.probe_mutex);
                goto fail_probe;
        }

        up(&vuart_bus_priv.probe_mutex);

        return result;

fail_probe:
        ps3_vuart_set_interrupt_mask(dev, 0);
        kfree(dev->driver_priv);
        dev->driver_priv = NULL;
fail_dev_malloc:
        vuart_bus_priv.devices[dev->port_number] = NULL;
fail_busy:
        ps3_vuart_bus_interrupt_put();
fail_setup_interrupt:
        up(&vuart_bus_priv.probe_mutex);
        dev_dbg(&dev->core, "%s:%d: failed\n", __func__, __LINE__);
        return result;
}

is correct.  Although not exactly a thing of beauty.
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