Re: [alsa-devel] [PATCH 29/31] sound/oxfw: use kmemdup rather than duplicating its implementation

[Takashi Iwai <tiwai@suse.de>]

On Fri, 07 Aug 2015 09:59:35 +0200,
Andrzej Hajda wrote:
> 
> The patch was generated using fixed coccinelle semantic patch
> scripts/coccinelle/api/memdup.cocci [1].
> 
> [1]: http://permalink.gmane.org/gmane.linux.kernel/2014320
> 
> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>

Applied, thanks.


Takashi

> ---
>  sound/firewire/oxfw/oxfw-stream.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c
> index 873d40f..77ad5b9 100644
> --- a/sound/firewire/oxfw/oxfw-stream.c
> +++ b/sound/firewire/oxfw/oxfw-stream.c
> @@ -512,12 +512,11 @@ assume_stream_formats(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir,
>  	if (err < 0)
>  		goto end;
>  
> -	formats[eid] = kmalloc(*len, GFP_KERNEL);
> +	formats[eid] = kmemdup(buf, *len, GFP_KERNEL);
>  	if (formats[eid] == NULL) {
>  		err = -ENOMEM;
>  		goto end;
>  	}
> -	memcpy(formats[eid], buf, *len);
>  
>  	/* apply the format for each available sampling rate */
>  	for (i = 0; i < ARRAY_SIZE(oxfw_rate_table); i++) {
> @@ -531,12 +530,11 @@ assume_stream_formats(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir,
>  			continue;
>  
>  		eid++;
> -		formats[eid] = kmalloc(*len, GFP_KERNEL);
> +		formats[eid] = kmemdup(buf, *len, GFP_KERNEL);
>  		if (formats[eid] == NULL) {
>  			err = -ENOMEM;
>  			goto end;
>  		}
> -		memcpy(formats[eid], buf, *len);
>  		formats[eid][2] = avc_stream_rate_table[i];
>  	}
>  
> @@ -594,12 +592,11 @@ static int fill_stream_formats(struct snd_oxfw *oxfw,
>  		if (err < 0)
>  			break;
>  
> -		formats[eid] = kmalloc(len, GFP_KERNEL);
> +		formats[eid] = kmemdup(buf, len, GFP_KERNEL);
>  		if (formats[eid] == NULL) {
>  			err = -ENOMEM;
>  			break;
>  		}
> -		memcpy(formats[eid], buf, len);
>  
>  		/* get next entry */
>  		len = AVC_GENERIC_FRAME_MAXIMUM_BYTES;
> -- 
> 1.9.1
> 
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