linux-kernel - [PATCH v1] ALSA: usb-audio: sound: usb: usb true/false for bool return type

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Message-ID: <20191029175200.GA7320@saurav>
Date:   Tue, 29 Oct 2019 23:22:00 +0530
From:   Saurav Girepunje <saurav.girepunje@...il.com>
To:     perex@...ex.cz, tiwai@...e.com, allison@...utok.net,
        rfontana@...hat.com, saurav.girepunje@...il.com,
        tglx@...utronix.de, gregkh@...uxfoundation.org,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Cc:     saurav.girepunje@...mail.com
Subject: [PATCH v1] ALSA: usb-audio: sound: usb: usb true/false for bool
 return type

Use true/false for bool type return in uac_clock_source_is_valid().

Signed-off-by: Saurav Girepunje <saurav.girepunje@...il.com>
---

Changes in v1:

	- Update the patch subject suggested by Takashi Iwai <tiwai@...e.de>

        - Drop "!!" but keep the ternary operator in last return
          statement so that function will return always true/false.
 
 sound/usb/clock.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index 72e9bdf76115..8d5538063598 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -167,21 +167,21 @@ static bool uac_clock_source_is_valid(struct snd_usb_audio *chip,
 			snd_usb_find_clock_source_v3(chip->ctrl_intf, source_id);
 
 		if (!cs_desc)
-			return 0;
+			return false;
 		bmControls = le32_to_cpu(cs_desc->bmControls);
 	} else { /* UAC_VERSION_1/2 */
 		struct uac_clock_source_descriptor *cs_desc =
 			snd_usb_find_clock_source(chip->ctrl_intf, source_id);
 
 		if (!cs_desc)
-			return 0;
+			return false;
 		bmControls = cs_desc->bmControls;
 	}
 
 	/* If a clock source can't tell us whether it's valid, we assume it is */
 	if (!uac_v2v3_control_is_readable(bmControls,
 				      UAC2_CS_CONTROL_CLOCK_VALID))
-		return 1;
+		return true;
 
 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR,
 			      USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
@@ -193,10 +193,10 @@ static bool uac_clock_source_is_valid(struct snd_usb_audio *chip,
 		dev_warn(&dev->dev,
 			 "%s(): cannot get clock validity for id %d\n",
 			   __func__, source_id);
-		return 0;
+		return false;
 	}
 
-	return !!data;
+	return data ? true :  false;
 }
 
 static int __uac_clock_find_source(struct snd_usb_audio *chip, int entity_id,
-- 
2.20.1