linux-kernel - [PATCH 1/7] media: solo6x10: Use pcim functions

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Message-Id: <20240411-fix-smatch-v1-1-045f92467937@chromium.org>
Date: Thu, 11 Apr 2024 21:17:50 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Bluecherry Maintainers <maintainers@...echerrydvr.com>, 
 Anton Sviridenko <anton@...p.bluecherry.net>, 
 Andrey Utkin <andrey_utkin@...tmail.com>, 
 Ismael Luceno <ismael@...ev.co.uk>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Patrice Chotard <patrice.chotard@...s.st.com>
Cc: Hans Verkuil <hverkuil-cisco@...all.nl>, linux-media@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH 1/7] media: solo6x10: Use pcim functions

Instead of handling manually the release of the memory regions let devm
do that for us.

Makes smatch happy:
drivers/media/pci/solo6x10/solo6x10-core.c:631 solo_pci_probe() warn: 'pdev' from pci_request_regions() not released on lines: 631.

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/pci/solo6x10/solo6x10-core.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/media/pci/solo6x10/solo6x10-core.c b/drivers/media/pci/solo6x10/solo6x10-core.c
index 6d87fbb0ee04a..abf30b7609e17 100644
--- a/drivers/media/pci/solo6x10/solo6x10-core.c
+++ b/drivers/media/pci/solo6x10/solo6x10-core.c
@@ -145,10 +145,8 @@ static void free_solo_dev(struct solo_dev *solo_dev)
 		/* Now cleanup the PCI device */
 		solo_irq_off(solo_dev, ~0);
 		free_irq(pdev->irq, solo_dev);
-		pci_iounmap(pdev, solo_dev->reg_base);
 	}
 
-	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 	v4l2_device_unregister(&solo_dev->v4l2_dev);
 	pci_set_drvdata(pdev, NULL);
@@ -480,15 +478,10 @@ static int solo_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	pci_write_config_byte(pdev, 0x40, 0x00);
 	pci_write_config_byte(pdev, 0x41, 0x00);
 
-	ret = pci_request_regions(pdev, SOLO6X10_NAME);
+	ret = pcim_iomap_regions(pdev, BIT(0), SOLO6X10_NAME);
 	if (ret)
 		goto fail_probe;
-
-	solo_dev->reg_base = pci_ioremap_bar(pdev, 0);
-	if (solo_dev->reg_base == NULL) {
-		ret = -ENOMEM;
-		goto fail_probe;
-	}
+	solo_dev->reg_base = pcim_iomap_table(pdev)[0];
 
 	chip_id = solo_reg_read(solo_dev, SOLO_CHIP_OPTION) &
 				SOLO_CHIP_ID_MASK;

-- 
2.44.0.683.g7961c838ac-goog