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Message-ID: <20190109181750.lqcm2bhg4wubuavu@earth.universe>
Date: Wed, 9 Jan 2019 19:17:50 +0100
From: Sebastian Reichel <sre@...nel.org>
To: Pavel Machek <pavel@....cz>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>,
Marcel Holtmann <marcel@...tmann.org>,
Tony Lindgren <tony@...mide.com>,
Rob Herring <robh@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-bluetooth@...r.kernel.org, linux-media@...r.kernel.org,
linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/14] media: wl128x-radio: simplify
fmc_prepare/fmc_release
Hi Pavel,
On Sat, Dec 22, 2018 at 08:29:34PM +0100, Pavel Machek wrote:
> On Fri 2018-12-21 02:17:48, Sebastian Reichel wrote:
> > From: Sebastian Reichel <sebastian.reichel@...labora.com>
> >
> > Remove unused return code from fmc_prepare() and fmc_release() to
> > simplify the code a bit.
>
>
> > /*
> > * This function will be called from FM V4L2 release function.
> > * Unregister from ST driver.
> > */
> > -int fmc_release(struct fmdev *fmdev)
> > +void fmc_release(struct fmdev *fmdev)
> > {
> > static struct st_proto_s fm_st_proto;
> > int ret;
> >
> > if (!test_bit(FM_CORE_READY, &fmdev->flag)) {
> > fmdbg("FM Core is already down\n");
> > - return 0;
> > + return;
> > }
> > /* Service pending read */
> > wake_up_interruptible(&fmdev->rx.rds.read_queue);
> > @@ -1611,7 +1606,6 @@ int fmc_release(struct fmdev *fmdev)
> > fmdbg("Successfully unregistered from ST\n");
> >
> > clear_bit(FM_CORE_READY, &fmdev->flag);
> > - return ret;
> > }
>
>
> You probably leave unused variable (ret) here. I guess that's okay as
> you remove it later in the series...?
It's still being used after this patch (but indeed removed in a
later patch).
> Also... I'd kind of expect _prepare routine to return int. Even if it
> currently does not do anything that could return error, I'd kind of
> expect allocations being done there...
well the driver is basically feature complete and all allocations
happen in probe :)
-- Sebastian
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