[PATCH v3 1/4] ASoC: sof: Use pure devres PCI

From: Philipp Stanner
Date: Fri Apr 25 2025 - 04:20:17 EST


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@xxxxxxxxxx>
---
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