linux-kernel - Re: [PATCH] ALSA: pci: Fix memory leak in snd_korg1212

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Message-ID: <47c90b48-8706-7860-3b87-30a7bbb726c0@web.de>
Date:   Sun, 27 Oct 2019 21:40:21 +0100
From:   Markus Elfring <Markus.Elfring@....de>
To:     Navid Emamdoost <navid.emamdoost@...il.com>,
        alsa-devel@...a-project.org
Cc:     Navid Emamdoost <emamd001@....edu>, Kangjie Lu <kjlu@....edu>,
        Stephen McCamant <smccaman@....edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Richard Fontana <rfontana@...hat.com>,
        Takashi Iwai <tiwai@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        kernel-janitors@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ALSA: pci: Fix memory leak in snd_korg1212_create

…
> +++ b/sound/pci/korg1212/korg1212.c
…
> @@ -2398,8 +2403,10 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
>
>          for (i = 0; i < ARRAY_SIZE(snd_korg1212_controls); i++) {
>                  err = snd_ctl_add(korg1212->card, snd_ctl_new1(&snd_korg1212_controls[i], korg1212));
> -                if (err < 0)
> +		if (err < 0) {
> +			snd_korg1212_free(korg1212);
>                          return err;
> +		}

I suggest to add a jump target according to the Linux coding style
so that duplicate exception handling code can be reduced.

 	return 0;

+free_korg:
+	snd_korg1212_free(korg1212);
+	return err;
 }


Regards,
Markus