From 30b35399ceb2398d05837863476dcb12f12f3a82 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 11 Oct 2006 18:52:53 +0200 Subject: [ALSA] Various fixes for suspend/resume of ALSA PCI drivers - Check the return value of pci_enable_device() and request_irq() in the suspend. If any error occurs there, disable the device using snd_card_disconnect(). - Call pci_set_power_state() properly with pci_choose_state(). - Fix the order to call pci_set_power_state(). - Removed obsolete house-made PM codes in some drivers. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/pci/intel8x0.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) (limited to 'sound/pci/intel8x0.c') diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index f4319b8d464..7f22dab0724 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -2476,10 +2476,14 @@ static int intel8x0_suspend(struct pci_dev *pci, pm_message_t state) if (chip->device_type == DEVICE_INTEL_ICH4) chip->sdm_saved = igetbyte(chip, ICHREG(SDM)); - if (chip->irq >= 0) + if (chip->irq >= 0) { + synchronize_irq(chip->irq); free_irq(chip->irq, chip); + chip->irq = -1; + } pci_disable_device(pci); pci_save_state(pci); + pci_set_power_state(pci, pci_choose_state(pci, state)); return 0; } @@ -2489,11 +2493,22 @@ static int intel8x0_resume(struct pci_dev *pci) struct intel8x0 *chip = card->private_data; int i; + pci_set_power_state(pci, PCI_D0); pci_restore_state(pci); - pci_enable_device(pci); + if (pci_enable_device(pci) < 0) { + printk(KERN_ERR "intel8x0: pci_enable_device failed, " + "disabling device\n"); + snd_card_disconnect(card); + return -EIO; + } pci_set_master(pci); - request_irq(pci->irq, snd_intel8x0_interrupt, IRQF_DISABLED|IRQF_SHARED, - card->shortname, chip); + if (request_irq(pci->irq, snd_intel8x0_interrupt, + IRQF_DISABLED|IRQF_SHARED, card->shortname, chip)) { + printk(KERN_ERR "intel8x0: unable to grab IRQ %d, " + "disabling device\n", pci->irq); + snd_card_disconnect(card); + return -EIO; + } chip->irq = pci->irq; synchronize_irq(chip->irq); snd_intel8x0_chip_init(chip, 0); -- cgit v1.2.3