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Date: Mon, 20 Aug 2012 11:13:35 +0200
From: Takashi Iwai <tiwai@...e.de>
To: Ondrej Zary <linux@...nbow-software.org>
Cc: Massimo Piccioni <dafastidio@...ero.it>,
alsa-devel@...a-project.org,
Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: [alsa-devel] [PATCH 1/2] snd-ad1816a: remove useless struct snd_card_ad1816a
At Sun, 19 Aug 2012 23:27:19 +0200,
Ondrej Zary wrote:
>
> struct snd_card_ad1816a is only set but the values are never used then.
> Removing it allows struct snd_card's private_data to be used for
> struct snd_ad1816a, simplifying the code.
>
> Signed-off-by: Ondrej Zary <linux@...nbow-software.org>
Applied both patches now. Thanks.
Takashi
>
> diff --git a/include/sound/ad1816a.h b/include/sound/ad1816a.h
> index d010858..62da41e 100644
> --- a/include/sound/ad1816a.h
> +++ b/include/sound/ad1816a.h
> @@ -165,7 +165,7 @@ struct snd_ad1816a {
>
> extern int snd_ad1816a_create(struct snd_card *card, unsigned long port,
> int irq, int dma1, int dma2,
> - struct snd_ad1816a **chip);
> + struct snd_ad1816a *chip);
>
> extern int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm);
> extern int snd_ad1816a_mixer(struct snd_ad1816a *chip);
> diff --git a/sound/isa/ad1816a/ad1816a.c b/sound/isa/ad1816a/ad1816a.c
> index 94b83b6..1a374e6 100644
> --- a/sound/isa/ad1816a/ad1816a.c
> +++ b/sound/isa/ad1816a/ad1816a.c
> @@ -63,11 +63,6 @@ MODULE_PARM_DESC(enable, "Enable ad1816a based soundcard.");
> module_param_array(clockfreq, int, NULL, 0444);
> MODULE_PARM_DESC(clockfreq, "Clock frequency for ad1816a driver (default = 0).");
>
> -struct snd_card_ad1816a {
> - struct pnp_dev *dev;
> - struct pnp_dev *devmpu;
> -};
> -
> static struct pnp_card_device_id snd_ad1816a_pnpids[] = {
> /* Analog Devices AD1815 */
> { .id = "ADS7150", .devs = { { .id = "ADS7150" }, { .id = "ADS7151" } } },
> @@ -99,25 +94,16 @@ MODULE_DEVICE_TABLE(pnp_card, snd_ad1816a_pnpids);
> #define DRIVER_NAME "snd-card-ad1816a"
>
>
> -static int __devinit snd_card_ad1816a_pnp(int dev, struct snd_card_ad1816a *acard,
> - struct pnp_card_link *card,
> +static int __devinit snd_card_ad1816a_pnp(int dev, struct pnp_card_link *card,
> const struct pnp_card_device_id *id)
> {
> struct pnp_dev *pdev;
> int err;
>
> - acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
> - if (acard->dev == NULL)
> + pdev = pnp_request_card_device(card, id->devs[0].id, NULL);
> + if (pdev == NULL)
> return -EBUSY;
>
> - acard->devmpu = pnp_request_card_device(card, id->devs[1].id, NULL);
> - if (acard->devmpu == NULL) {
> - mpu_port[dev] = -1;
> - snd_printk(KERN_WARNING PFX "MPU401 device busy, skipping.\n");
> - }
> -
> - pdev = acard->dev;
> -
> err = pnp_activate_dev(pdev);
> if (err < 0) {
> printk(KERN_ERR PFX "AUDIO PnP configure failure\n");
> @@ -130,16 +116,17 @@ static int __devinit snd_card_ad1816a_pnp(int dev, struct snd_card_ad1816a *acar
> dma2[dev] = pnp_dma(pdev, 1);
> irq[dev] = pnp_irq(pdev, 0);
>
> - if (acard->devmpu == NULL)
> + pdev = pnp_request_card_device(card, id->devs[1].id, NULL);
> + if (pdev == NULL) {
> + mpu_port[dev] = -1;
> + snd_printk(KERN_WARNING PFX "MPU401 device busy, skipping.\n");
> return 0;
> -
> - pdev = acard->devmpu;
> + }
>
> err = pnp_activate_dev(pdev);
> if (err < 0) {
> printk(KERN_ERR PFX "MPU401 PnP configure failure\n");
> mpu_port[dev] = -1;
> - acard->devmpu = NULL;
> } else {
> mpu_port[dev] = pnp_port_start(pdev, 0);
> mpu_irq[dev] = pnp_irq(pdev, 0);
> @@ -153,18 +140,17 @@ static int __devinit snd_card_ad1816a_probe(int dev, struct pnp_card_link *pcard
> {
> int error;
> struct snd_card *card;
> - struct snd_card_ad1816a *acard;
> struct snd_ad1816a *chip;
> struct snd_opl3 *opl3;
> struct snd_timer *timer;
>
> error = snd_card_create(index[dev], id[dev], THIS_MODULE,
> - sizeof(struct snd_card_ad1816a), &card);
> + sizeof(struct snd_ad1816a), &card);
> if (error < 0)
> return error;
> - acard = card->private_data;
> + chip = card->private_data;
>
> - if ((error = snd_card_ad1816a_pnp(dev, acard, pcard, pid))) {
> + if ((error = snd_card_ad1816a_pnp(dev, pcard, pid))) {
> snd_card_free(card);
> return error;
> }
> @@ -174,7 +160,7 @@ static int __devinit snd_card_ad1816a_probe(int dev, struct pnp_card_link *pcard
> irq[dev],
> dma1[dev],
> dma2[dev],
> - &chip)) < 0) {
> + chip)) < 0) {
> snd_card_free(card);
> return error;
> }
> diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
> index 177eed3..de5cc1c 100644
> --- a/sound/isa/ad1816a/ad1816a_lib.c
> +++ b/sound/isa/ad1816a/ad1816a_lib.c
> @@ -548,7 +548,6 @@ static int snd_ad1816a_free(struct snd_ad1816a *chip)
> snd_dma_disable(chip->dma2);
> free_dma(chip->dma2);
> }
> - kfree(chip);
> return 0;
> }
>
> @@ -573,19 +572,13 @@ static const char __devinit *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
>
> int __devinit snd_ad1816a_create(struct snd_card *card,
> unsigned long port, int irq, int dma1, int dma2,
> - struct snd_ad1816a **rchip)
> + struct snd_ad1816a *chip)
> {
> static struct snd_device_ops ops = {
> .dev_free = snd_ad1816a_dev_free,
> };
> int error;
> - struct snd_ad1816a *chip;
>
> - *rchip = NULL;
> -
> - chip = kzalloc(sizeof(*chip), GFP_KERNEL);
> - if (chip == NULL)
> - return -ENOMEM;
> chip->irq = -1;
> chip->dma1 = -1;
> chip->dma2 = -1;
> @@ -631,7 +624,6 @@ int __devinit snd_ad1816a_create(struct snd_card *card,
> return error;
> }
>
> - *rchip = chip;
> return 0;
> }
>
>
> --
> Ondrej Zary
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@...a-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>
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