Re: [PATCH v3 01/10] mfd: da9063: Fix failpath in core

[Vaishali Thakkar <vthakkar@vaishalithakkar.in>]

On Sat, Jun 2, 2018 at 3:41 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> In case mfd_add_devices() fails, da9063_irq_exit() is not called to
> undo the IRQchip setup done by da9063_irq_init(). Fix this by adding
> the missing fail path.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

Reviewed by: Vaishali Thakkar <vthakkar@vaishalithakkar.in>

> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Mark Brown <broonie@kernel.org>
> Cc: Steve Twiss <stwiss.opensource@diasemi.com>
> Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
> Cc: linux-renesas-soc@vger.kernel.org
> ---
> V3: New patch
> ---
>  drivers/mfd/da9063-core.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
> index 6c2870d4e754..8226ebd8b96d 100644
> --- a/drivers/mfd/da9063-core.c
> +++ b/drivers/mfd/da9063-core.c
> @@ -229,10 +229,16 @@ int da9063_device_init(struct da9063 *da9063, unsigned int irq)
>         ret = mfd_add_devices(da9063->dev, -1, da9063_devs,
>                               ARRAY_SIZE(da9063_devs), NULL, da9063->irq_base,
>                               NULL);
> -       if (ret)
> +       if (ret) {
>                 dev_err(da9063->dev, "Cannot add MFD cells\n");
> +               goto err_irq_exit;
> +       }
>
>         return ret;
> +
> +err_irq_exit:
> +       da9063_irq_exit(da9063);
> +       return ret;
>  }
>
>  void da9063_device_exit(struct da9063 *da9063)
> --
> 2.16.2
>