linux-kernel - Re: [PATCH 2/3] ALSA: mpu401: Use common error handling code in snd_mpu401_uart

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Message-ID: <1502586498.3099.27.camel@perches.com>
Date:   Sat, 12 Aug 2017 18:08:18 -0700
From:   Joe Perches <joe@...ches.com>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>,
        alsa-devel@...a-project.org, Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Takashi Sakamoto <o-takashi@...amocchi.jp>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 2/3] ALSA: mpu401: Use common error handling code in
 snd_mpu401_uart_new()

On Sat, 2017-08-12 at 21:12 +0200, SF Markus Elfring wrote:
> Add a jump target so that a bit of exception handling can be better
> reused at the end of this function.
[]
> diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c
[]
> @@ -612,6 +612,9 @@ int snd_mpu401_uart_new(struct snd_card *card, int device,
>  	if (rrawmidi)
>  		*rrawmidi = rmidi;
>  	return 0;
> +free_device:
> +	snd_device_free(card, rmidi);
> +	return err;
>  }
>  
>  EXPORT_SYMBOL(snd_mpu401_uart_new);

It may be more common and better to leave a blank line
between a single line return and a label.

It separates logical points in the function a bit more.