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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: linux-i2c@vger.kernel.org
Subject: Re: [PATCH] i2c: also convert placeholder function to return errno
Date: Sat, 25 Jul 2020 18:39:41 +0300	[thread overview]
Message-ID: <20200725153941.GI3703480@smile.fi.intel.com> (raw)
In-Reply-To: <20200725140736.3629-1-wsa+renesas@sang-engineering.com>

On Sat, Jul 25, 2020 at 04:07:36PM +0200, Wolfram Sang wrote:
> All i2c_new_device-alike functions return ERR_PTR these days, but this
> fallback function was missed.

I think either will work.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Thanks!

> Fixes: 2dea645ffc21 ("i2c: acpi: Return error pointers from i2c_acpi_new_device()")
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
> 
> I recall that -ENOSYS is returned in case something is not compiled in.
> I am open for -ENODEV if this is deemed better...
> 
>  include/linux/i2c.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/i2c.h b/include/linux/i2c.h
> index b8b8963f8bb9..83fe48304781 100644
> --- a/include/linux/i2c.h
> +++ b/include/linux/i2c.h
> @@ -1001,7 +1001,7 @@ static inline u32 i2c_acpi_find_bus_speed(struct device *dev)
>  static inline struct i2c_client *i2c_acpi_new_device(struct device *dev,
>  					int index, struct i2c_board_info *info)
>  {
> -	return NULL;
> +	return ERR_PTR(-ENOSYS);
>  }
>  static inline struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle)
>  {
> -- 
> 2.27.0
> 

-- 
With Best Regards,
Andy Shevchenko



  reply	other threads:[~2020-07-25 15:39 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-25 14:07 [PATCH] i2c: also convert placeholder function to return errno Wolfram Sang
2020-07-25 15:39 ` Andy Shevchenko [this message]
2020-07-27 18:18 ` Wolfram Sang

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