linux-kernel - Re: [PATCH v2 1/9] ALSA: hda/intel: Fix error handling in azx

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Date:   Fri, 21 Jul 2023 14:34:50 +0300
From:   Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>
To:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        alsa-devel@...a-project.org
Cc:     sound-open-firmware@...a-project.org, linux-kernel@...r.kernel.org,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Daniel Baluta <daniel.baluta@....com>
Subject: Re: [PATCH v2 1/9] ALSA: hda/intel: Fix error handling in azx_probe()



On 19/07/2023 19:41, Maarten Lankhorst wrote:
> Add missing pci_set_drv to NULL call on error.
> 
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> ---
>  sound/pci/hda/hda_intel.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> index ef831770ca7da..0d2d6bc6c75ef 100644
> --- a/sound/pci/hda/hda_intel.c
> +++ b/sound/pci/hda/hda_intel.c
> @@ -2188,6 +2188,7 @@ static int azx_probe(struct pci_dev *pci,
>  	return 0;
>  
>  out_free:
> +	pci_set_drvdata(pci, NULL);
The original patch added this:
f4c482a4d0b3 ("ALSA: hda - Fix yet another race of vga_switcheroo registration")

but got removed later by:
20a24225d8f9 ("ALSA: PCI: Remove superfluous pci_set_drvdata(pci, NULL) at remove")

and partially added back (to azx_remove) by:
e81478bbe7a1 ("ALSA: hda: fix general protection fault in azx_runtime_idle")

I guess, it should do not harm to add it back...

>  	snd_card_free(card);
>  	return err;
>  }

Reviewed-by: Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>