linux-kernel - [PATCH v3 09/11] sound: hiface: move to use usb_control_msg

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Message-Id: <20200914153756.3412156-10-gregkh@linuxfoundation.org>
Date:   Mon, 14 Sep 2020 17:37:54 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     himadrispandya@...il.com, dvyukov@...gle.com,
        linux-usb@...r.kernel.org
Cc:     perex@...ex.cz, tiwai@...e.com, stern@...land.harvard.ed,
        linux-kernel@...r.kernel.org, marcel@...tmann.org,
        johan.hedberg@...il.com, linux-bluetooth@...r.kernel.org,
        alsa-devel@...a-project.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Takashi Iwai <tiwai@...e.de>
Subject: [PATCH v3 09/11] sound: hiface: move to use usb_control_msg_send()

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@...ex.cz>
Cc: alsa-devel@...a-project.org
Reviewed-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
v3:
 - no change from v2

v2:
 - Added reviewed-by from 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