[alsa-devel] dev_info() argument in sound/soc/soc_dapm.c

Jarkko Nikula jhnikula at gmail.com
Wed Dec 22 15:42:01 CET 2010


On Wed, 22 Dec 2010 15:06:44 +0100
Takashi Iwai <tiwai at suse.de> wrote:

> Hi,
> 
> my build tests caught a warning regarding the conversion to dev_info()
> in soc-dapm.c.  dev_info() is printf style, thus you shouldn't pass
> the expanded string to the format argument.
> 
> I applied the following patch to topic/asoc branch.
> 
...

> --- a/sound/soc/soc-dapm.c
> +++ b/sound/soc/soc-dapm.c
> @@ -110,7 +110,7 @@ static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...)
>  
>  	va_start(args, fmt);
>  	vsnprintf(buf, PAGE_SIZE, fmt, args);
> -	dev_info(dev, buf);
> +	dev_info(dev, "%s", buf);
>  	va_end(args);
>  
Thanks! I guess this is safer as the buf here should contain only the
characters to be printed.


-- 
Jarkko


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