linux-kernel - Re: [PATCH 7/9] sound/pci/rme9652/hdspm.c: ioremap balanced with iounmap

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Date:	Fri, 06 Oct 2006 16:40:30 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Amol Lad <amol@...ismonetworks.com>
Cc:	linux kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: Re: [PATCH 7/9] sound/pci/rme9652/hdspm.c: ioremap balanced with	iounmap

At Fri, 06 Oct 2006 11:08:56 +0530,
Amol Lad wrote:
> 
> Signed-off-by: Amol Lad <amol@...ismonetworks.com>

This is wrong.

iounmap is called in snd_hdspm_free(), which is called when an error
is returned from any of probe part.


Takashi


> ---
>  hdspm.c |    6 +++++-
>  1 files changed, 5 insertions(+), 1 deletion(-)
> ---
> diff -uprN -X linux-2.6.19-rc1-orig/Documentation/dontdiff linux-2.6.19-rc1-orig/sound/pci/rme9652/hdspm.c linux-2.6.19-rc1/sound/pci/rme9652/hdspm.c
> --- linux-2.6.19-rc1-orig/sound/pci/rme9652/hdspm.c	2006-09-21 10:15:53.000000000 +0530
> +++ linux-2.6.19-rc1/sound/pci/rme9652/hdspm.c	2006-10-05 16:55:32.000000000 +0530
> @@ -3500,6 +3500,7 @@ static int __devinit snd_hdspm_create(st
>  			IRQF_DISABLED | IRQF_SHARED, "hdspm",
>  			(void *) hdspm)) {
>  		snd_printk(KERN_ERR "HDSPM: unable to use IRQ %d\n", pci->irq);
> +		iounmap(hdspm->iobase);
>  		return -EBUSY;
>  	}
>  
> @@ -3516,6 +3517,7 @@ static int __devinit snd_hdspm_create(st
>  	    == NULL) {
>  		snd_printk(KERN_ERR "HDSPM: unable to kmalloc Mixer memory of %d Bytes\n",
>  			   (int)sizeof(struct hdspm_mixer));
> +		iounmap(hdspm->iobase);
>  		return err;
>  	}
>  
> @@ -3524,8 +3526,10 @@ static int __devinit snd_hdspm_create(st
>  	hdspm->qs_channels = MADI_QS_CHANNELS;
>  
>  	snd_printdd("create alsa devices.\n");
> -	if ((err = snd_hdspm_create_alsa_devices(card, hdspm)) < 0)
> +	if ((err = snd_hdspm_create_alsa_devices(card, hdspm)) < 0) {
> +		iounmap(hdspm->iobase);
>  		return err;
> +	}
>  
>  	snd_hdspm_initialize_midi_flush(hdspm);
>  
> 
> 
> -
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