diff mbox series

[09/10] sound: hiface: move to use usb_control_msg_send()

Message ID 20200902110115.1994491-13-gregkh@linuxfoundation.org (mailing list archive)
State New, archived
Headers show
Series USB: new USB control message helper functions | expand

Commit Message

Greg KH Sept. 2, 2020, 11:01 a.m. UTC
The usb_control_msg_send() call can return an error if a "short" write
happens, so move the driver over to using that call instead.

Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/hiface/pcm.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

Comments

Takashi Iwai Sept. 2, 2020, 2:40 p.m. UTC | #1
On Wed, 02 Sep 2020 13:01:14 +0200,
Greg Kroah-Hartman wrote:
> 
> The usb_control_msg_send() call can return an error if a "short" write
> happens, so move the driver over to using that call instead.
> 
> Cc: Jaroslav Kysela <perex@perex.cz>
> Cc: Takashi Iwai <tiwai@suse.com>
> Cc: alsa-devel@alsa-project.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Reviewed-by: Takashi Iwai <tiwai@suse.de>


thanks,

Takashi

> ---
>  sound/usb/hiface/pcm.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/sound/usb/hiface/pcm.c b/sound/usb/hiface/pcm.c
> index a148caa5f48e..f9c924e3964e 100644
> --- a/sound/usb/hiface/pcm.c
> +++ b/sound/usb/hiface/pcm.c
> @@ -156,16 +156,14 @@ static int hiface_pcm_set_rate(struct pcm_runtime *rt, unsigned int rate)
>  	 * This control message doesn't have any ack from the
>  	 * other side
>  	 */
> -	ret = usb_control_msg(device, usb_sndctrlpipe(device, 0),
> -			      HIFACE_SET_RATE_REQUEST,
> -			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
> -			      rate_value, 0, NULL, 0, 100);
> -	if (ret < 0) {
> +	ret = usb_control_msg_send(device, 0,
> +				   HIFACE_SET_RATE_REQUEST,
> +				   USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
> +				   rate_value, 0, NULL, 0, 100);
> +	if (ret)
>  		dev_err(&device->dev, "Error setting samplerate %d.\n", rate);
> -		return ret;
> -	}
>  
> -	return 0;
> +	return ret;
>  }
>  
>  static struct pcm_substream *hiface_pcm_get_substream(struct snd_pcm_substream
> -- 
> 2.28.0
>
diff mbox series

Patch

diff --git a/sound/usb/hiface/pcm.c b/sound/usb/hiface/pcm.c
index a148caa5f48e..f9c924e3964e 100644
--- a/sound/usb/hiface/pcm.c
+++ b/sound/usb/hiface/pcm.c
@@ -156,16 +156,14 @@  static int hiface_pcm_set_rate(struct pcm_runtime *rt, unsigned int rate)
 	 * This control message doesn't have any ack from the
 	 * other side
 	 */
-	ret = usb_control_msg(device, usb_sndctrlpipe(device, 0),
-			      HIFACE_SET_RATE_REQUEST,
-			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
-			      rate_value, 0, NULL, 0, 100);
-	if (ret < 0) {
+	ret = usb_control_msg_send(device, 0,
+				   HIFACE_SET_RATE_REQUEST,
+				   USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
+				   rate_value, 0, NULL, 0, 100);
+	if (ret)
 		dev_err(&device->dev, "Error setting samplerate %d.\n", rate);
-		return ret;
-	}
 
-	return 0;
+	return ret;
 }
 
 static struct pcm_substream *hiface_pcm_get_substream(struct snd_pcm_substream