Thread (38 messages) 38 messages, 5 authors, 2024-07-13
STALE726d
Revisions (6)
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[PATCH v2 02/12] PCI: brcmstb: Use "clk_out" error path label

From: Jim Quinlan <hidden>
Date: 2024-07-03 18:03:08
Also in: linux-pci, lkml
Subsystem: broadcom bcm2711/bcm2835 arm architecture, broadcom bcm7xxx arm architecture, broadcom stb pcie driver, pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers: Florian Fainelli, Jim Quinlan, Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds

Instead of invoking "clk_disable_unprepare(pcie->clk)" in
a number of error paths, we can just use a "clk_out" label
and goto the label after setting the return value.

Signed-off-by: Jim Quinlan <redacted>
---
 drivers/pci/controller/pcie-brcmstb.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index c08683febdd4..c2eb29b886f7 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -1620,24 +1620,25 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 	}
 	pcie->rescal = devm_reset_control_get_optional_shared(&pdev->dev, "rescal");
 	if (IS_ERR(pcie->rescal)) {
-		clk_disable_unprepare(pcie->clk);
-		return PTR_ERR(pcie->rescal);
+		ret = PTR_ERR(pcie->rescal);
+		goto clk_out;
 	}
 	pcie->perst_reset = devm_reset_control_get_optional_exclusive(&pdev->dev, "perst");
 	if (IS_ERR(pcie->perst_reset)) {
-		clk_disable_unprepare(pcie->clk);
-		return PTR_ERR(pcie->perst_reset);
+		ret = PTR_ERR(pcie->perst_reset);
+		goto clk_out;
 	}
 
 	ret = reset_control_reset(pcie->rescal);
-	if (ret)
+	if (ret) {
 		dev_err(&pdev->dev, "failed to deassert 'rescal'\n");
+		goto clk_out;
+	}
 
 	ret = brcm_phy_start(pcie);
 	if (ret) {
 		reset_control_rearm(pcie->rescal);
-		clk_disable_unprepare(pcie->clk);
-		return ret;
+		goto clk_out;
 	}
 
 	ret = brcm_pcie_setup(pcie);
@@ -1676,6 +1677,9 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 
 	return 0;
 
+clk_out:
+	clk_disable_unprepare(pcie->clk);
+	return ret;
 fail:
 	__brcm_pcie_remove(pcie);
 	return ret;
-- 
2.17.1

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