[alsa-devel] [PATCH] ASoC: sigmadsp: Fix missleading return value

[Lars-Peter Clausen]

On 02/10/2016 03:59 PM, pascal.huerst at gmail.com wrote:
> From: Pascal Huerst <pascal.huerst at gmail.com>
> 
> Forwarding the return value of i2c_master_send, leads to errors
> later on, since i2c_master_send returns the number of bytes
> transmittet. Check for ret < 0 instead and return 0 otherwise.
> 
> Signed-off-by: Pascal Huerst <pascal.huerst at gmail.com>

Acked-by: Lars-Peter Clausen <lars at metafoo.de>

> ---
>  sound/soc/codecs/sigmadsp-i2c.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/soc/codecs/sigmadsp-i2c.c b/sound/soc/codecs/sigmadsp-i2c.c
> index 21ca3a5..d374c18 100644
> --- a/sound/soc/codecs/sigmadsp-i2c.c
> +++ b/sound/soc/codecs/sigmadsp-i2c.c
> @@ -31,7 +31,10 @@ static int sigmadsp_write_i2c(void *control_data,
>  
>  	kfree(buf);
>  
> -	return ret;
> +	if (ret < 0)
> +		return ret;
> +
> +	return 0;
>  }
>  
>  static int sigmadsp_read_i2c(void *control_data,
>