linux-kernel - [PATCH v2 1/4] ASoC: sof: Use pure devres PCI

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250423082858.49780-3-phasta@kernel.org>
Date: Wed, 23 Apr 2025 10:28:56 +0200
From: Philipp Stanner <phasta@...nel.org>
To: Cezary Rojewski <cezary.rojewski@...el.com>,
	Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
	Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
	Bard Liao <yung-chuan.liao@...ux.intel.com>,
	Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
	Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
	Pierre-Louis Bossart <pierre-louis.bossart@...ux.dev>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Daniel Baluta <daniel.baluta@....com>,
	Philipp Stanner <phasta@...nel.org>,
	Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com>,
	Charles Keepax <ckeepax@...nsource.cirrus.com>,
	Damien Le Moal <dlemoal@...nel.org>
Cc: linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	sound-open-firmware@...a-project.org
Subject: [PATCH v2 1/4] ASoC: sof: Use pure devres PCI

pci_request_regions() is a hybrid function which becomes managed if
pcim_enable_device() was called before. This hybrid nature is deprecated
and should not be used anymore.

Replace pci_request_regions() with the always-managed function
pcim_request_all_regions().

Remove surplus calls to PCI release functions, since pcim_ functions do
cleanup automatically.

Signed-off-by: Philipp Stanner <phasta@...nel.org>
---
 sound/soc/sof/sof-pci-dev.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c
index 2fc14b9a33d4..c50249aadea9 100644
--- a/sound/soc/sof/sof-pci-dev.c
+++ b/sound/soc/sof/sof-pci-dev.c
@@ -216,7 +216,7 @@ int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 	if (ret < 0)
 		return ret;
 
-	ret = pci_request_regions(pci, "Audio DSP");
+	ret = pcim_request_all_regions(pci, "Audio DSP");
 	if (ret < 0)
 		return ret;
 
@@ -240,8 +240,7 @@ int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 		path_override->ipc_type = sof_pci_ipc_type;
 	} else {
 		dev_err(dev, "Invalid IPC type requested: %d\n", sof_pci_ipc_type);
-		ret = -EINVAL;
-		goto out;
+		return -EINVAL;
 	}
 
 	path_override->fw_path = fw_path;
@@ -271,13 +270,7 @@ int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 	sof_pdata->sof_probe_complete = sof_pci_probe_complete;
 
 	/* call sof helper for DSP hardware probe */
-	ret = snd_sof_device_probe(dev, sof_pdata);
-
-out:
-	if (ret)
-		pci_release_regions(pci);
-
-	return ret;
+	return snd_sof_device_probe(dev, sof_pdata);
 }
 EXPORT_SYMBOL_NS(sof_pci_probe, "SND_SOC_SOF_PCI_DEV");
 
@@ -290,9 +283,6 @@ void sof_pci_remove(struct pci_dev *pci)
 	if (snd_sof_device_probe_completed(&pci->dev) &&
 	    !(sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME))
 		pm_runtime_get_noresume(&pci->dev);
-
-	/* release pci regions and disable device */
-	pci_release_regions(pci);
 }
 EXPORT_SYMBOL_NS(sof_pci_remove, "SND_SOC_SOF_PCI_DEV");
 
-- 
2.48.1