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ALSA: x86: Allocate resources with device-managed APIs 

This patch converts the resource management in x86 HDMI LPE audio
driver with devres as a clean up.  Each manual resource management is
converted with the corresponding devres helper now.

Link: https://lore.kernel.org/r/20210715075941.23332-73-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2021-07-15 09:59:34 +02:00
parent f082b1ad39
commit 854577ac2a
1 changed files with 16 additions and 41 deletions
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57
sound/x86/intel_hdmi_audio.c
View File

@ -1657,11 +1657,6 @@ static void hdmi_lpe_audio_free(struct snd_card *card)
cancel_work_sync(&ctx->hdmi_audio_wq);
}
if (card_ctx->mmio_start)
iounmap(card_ctx->mmio_start);
if (card_ctx->irq >= 0)
free_irq(card_ctx->irq, card_ctx);
}
/*
@ -1699,8 +1694,8 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
}
/* create a card instance with ALSA framework */
ret = snd_card_new(&pdev->dev, hdmi_card_index, hdmi_card_id,
THIS_MODULE, sizeof(*card_ctx), &card);
ret = snd_devm_card_new(&pdev->dev, hdmi_card_index, hdmi_card_id,
THIS_MODULE, sizeof(*card_ctx), &card);
if (ret)
return ret;
@ -1736,20 +1731,20 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
__func__, (unsigned int)res_mmio->start,
(unsigned int)res_mmio->end);
card_ctx->mmio_start = ioremap(res_mmio->start,
(size_t)(resource_size(res_mmio)));
card_ctx->mmio_start =
devm_ioremap(&pdev->dev, res_mmio->start,
(size_t)(resource_size(res_mmio)));
if (!card_ctx->mmio_start) {
dev_err(&pdev->dev, "Could not get ioremap\n");
ret = -EACCES;
goto err;
return -EACCES;
}
/* setup interrupt handler */
ret = request_irq(irq, display_pipe_interrupt_handler, 0,
pdev->name, card_ctx);
ret = devm_request_irq(&pdev->dev, irq, display_pipe_interrupt_handler,
0, pdev->name, card_ctx);
if (ret < 0) {
dev_err(&pdev->dev, "request_irq failed\n");
goto err;
return ret;
}
card_ctx->irq = irq;
@ -1769,7 +1764,7 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
ret = snd_pcm_new(card, INTEL_HAD, port, MAX_PB_STREAMS,
MAX_CAP_STREAMS, &pcm);
if (ret)
goto err;
return ret;
/* setup private data which can be retrieved when required */
pcm->private_data = ctx;
@ -1790,31 +1785,29 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
struct snd_kcontrol *kctl;
kctl = snd_ctl_new1(&had_controls[i], ctx);
if (!kctl) {
ret = -ENOMEM;
goto err;
}
if (!kctl)
return -ENOMEM;
kctl->id.device = pcm->device;
ret = snd_ctl_add(card, kctl);
if (ret < 0)
goto err;
return ret;
}
/* Register channel map controls */
ret = had_register_chmap_ctls(ctx, pcm);
if (ret < 0)
goto err;
return ret;
ret = had_create_jack(ctx, pcm);
if (ret < 0)
goto err;
return ret;
}
ret = snd_card_register(card);
if (ret)
goto err;
return ret;
spin_lock_irq(&pdata->lpe_audio_slock);
pdata->notify_audio_lpe = notify_audio_lpe;
@ -1831,23 +1824,6 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
}
return 0;
err:
snd_card_free(card);
return ret;
}
/*
* hdmi_lpe_audio_remove - stop bridge with i915
*
* This function is called when the platform device is destroyed.
*/
static int hdmi_lpe_audio_remove(struct platform_device *pdev)
{
struct snd_intelhad_card *card_ctx = platform_get_drvdata(pdev);
snd_card_free(card_ctx->card);
return 0;
}
static const struct dev_pm_ops hdmi_lpe_audio_pm = {
@ -1860,7 +1836,6 @@ static struct platform_driver hdmi_lpe_audio_driver = {
.pm = &hdmi_lpe_audio_pm,
},
.probe = hdmi_lpe_audio_probe,
.remove = hdmi_lpe_audio_remove,
};
module_platform_driver(hdmi_lpe_audio_driver);