Commit e7ff6721 authored by Robin Murphy's avatar Robin Murphy Committed by Takashi Iwai
Browse files

ALSA: emu10k1: Stop using iommu_present() 



iommu_get_domain_for_dev() is already perfectly happy to return NULL
if the given device has no IOMMU. Drop the unnecessary check in favour
of just handling that condition appropriately.

Signed-off-by: default avatarRobin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/9b506b4a4fe8a7f40aa8bad1aafc82426cf3dd92.1649165210.git.robin.murphy@arm.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent bc55cfd5

sound/pci/emu10k1/emu10k1_main.c

+1 −4
Original line number Diff line number Diff line
@@ -1751,11 +1751,8 @@ static void snd_emu10k1_detect_iommu(struct snd_emu10k1 *emu) 


	emu->iommu_workaround = false;



	if (!iommu_present(emu->card->dev->bus))

		return;



	domain = iommu_get_domain_for_dev(emu->card->dev);

	if (domain && domain->type == IOMMU_DOMAIN_IDENTITY)

	if (!domain || domain->type == IOMMU_DOMAIN_IDENTITY)

		return;



	dev_notice(emu->card->dev,