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Message-ID: <AANLkTim553rFApc41D6=19hBESPRwQtosrYii3d8aQti@mail.gmail.com>
Date: Tue, 24 Aug 2010 17:00:37 +0800
From: Eric Miao <eric.y.miao@...il.com>
To: Axel Lin <axel.lin@...il.com>
Cc: linux-kernel <linux-kernel@...r.kernel.org>,
Samuel Ortiz <sameo@...ux.intel.com>,
Mike Rapoport <mike@...pulab.co.il>
Subject: Re: [PATCH v2] mfd: tps6586x - free allocated resources when unload
the module
On Tue, Aug 24, 2010 at 3:18 PM, Axel Lin <axel.lin@...il.com> wrote:
> For the resources allocated in tps6586x_i2c_probe(),
> we need to free it in tps6586x_i2c_remove().
>
> Signed-off-by: Axel Lin <axel.lin@...il.com>
> ---
> Changes since V1:
> Current implementation allows gpiochip_add() fail in probe,
> thus just show a wraning if gpiochip_remove() fail.
>
> I don't have this hardware handy,
> I am not sure that does it make sense to allow gpiochip_add() fail in probe.
That's fully possible.
>
> drivers/mfd/tps6586x.c | 13 +++++++++++++
> 1 files changed, 13 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
> index 1c91936..2f9336c 100644
> --- a/drivers/mfd/tps6586x.c
> +++ b/drivers/mfd/tps6586x.c
> @@ -344,6 +344,19 @@ err_add_devs:
>
> static int __devexit tps6586x_i2c_remove(struct i2c_client *client)
> {
> + struct tps6586x *tps6586x = i2c_get_clientdata(client);
> + struct tps6586x_platform_data *pdata = client->dev.platform_data;
> + int ret;
> +
> + if (pdata->gpio_base) {
> + ret = gpiochip_remove(&tps6586x->gpio);
> + if (ret)
> + dev_err(&client->dev, "Can't remove gpio chip: %d\n",
> + ret);
> + }
> +
> + tps6586x_remove_subdevs(tps6586x);
> + kfree(tps6586x);
> return 0;
> }
>
> --
> 1.7.2
>
>
>
>
--
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