Re: [PATCH v5 02/18] platform/x86: intel_scu_ipc: Log more information if SCU IPC command fails

[Andy Shevchenko]

On Wed, Feb 12, 2020 at 01:36:49PM +0200, Mika Westerberg wrote:
> On Tue, Feb 11, 2020 at 05:41:38PM +0200, Andy Shevchenko wrote:
> > On Tue, Feb 11, 2020 at 04:25:47PM +0300, Mika Westerberg wrote:

...

> > >  	mutex_lock(&ipclock);
> > 
> > > +	cmdval = (inlen << 16) | (sub << 12) | cmd;
> > > +	ipc_command(scu, cmdval);
> > >  	err = intel_scu_ipc_check_status(scu);
> > > -
> > > -	if (!err) {
> > > +	if (err) {
> > > +		dev_err(&scu->dev, "IPC command %#x failed with %d\n", cmdval,
> > > +			err);
> > > +	} else {
> > >  		for (i = 0; i < outlen; i++)
> > >  			*out++ = ipc_data_readl(scu, 4 * i);
> > >  	}
> > 
> > It's not visible in this context but it looks like above applies here as well.
> 
> You mean move outside of the lock? This one calls ipc_data_readl()
> which should be under the lock.

I meant to move dev_err() out of the lock. The rest of course requires to stay
under it.

-- 
With Best Regards,
Andy Shevchenko