linux-kernel - Re: [PATCH v2] ALSA: usb-audio: fix Line6 Helix audio format rates

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Date:   Sun, 07 Jul 2019 11:27:20 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     "Nicola Lunghi" <nick83ola@...il.com>
Cc:     <alsa-devel@...a-project.org>,
        "Thomas Gleixner" <tglx@...utronix.de>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Allison Randal" <allison@...utok.net>,
        "Jaroslav Kysela" <perex@...ex.cz>,
        "Jussi Laako" <jussi@...arnerd.net>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] ALSA: usb-audio: fix Line6 Helix audio format rates

On Sun, 07 Jul 2019 10:27:34 +0200,
Nicola Lunghi wrote:
> @@ -294,7 +321,7 @@ static int parse_audio_format_rates_v2v3(struct snd_usb_audio *chip,
>  {
>  	struct usb_device *dev = chip->dev;
>  	unsigned char tmp[2], *data;
> -	int nr_triplets, data_size, ret = 0;
> +	int nr_triplets, data_size, ret, ret_l6 = 0;

This caused a compile warning:
  sound/usb/format.c: In function ‘parse_audio_format_rates_v2v3’:
  sound/usb/format.c:337:30: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized]
    int nr_triplets, data_size, ret, ret_l6 = 0;
                                ^~~
				
So I applied with a fix, keeping ret = 0 while dropping the
superfluous zero initialization for ret_l6.


thanks,

Takashi