diff mbox series

[v1,2/8] PCI: brcmstb: Use "clk_out" error path label

Message ID 20240628205430.24775-3-james.quinlan@broadcom.com (mailing list archive)
State Superseded
Delegated to: Krzysztof Wilczyński
Headers show
Series PCI: brcnstb: Enable STB 7712 SOC | expand

Commit Message

Jim Quinlan June 28, 2024, 8:54 p.m. UTC
Instead of invoking "clk_disable_unprepare(pcie->clk)" in
a number of error paths.

Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
---
 drivers/pci/controller/pcie-brcmstb.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

Comments

Bjorn Helgaas July 1, 2024, 7:49 p.m. UTC | #1
On Fri, Jun 28, 2024 at 04:54:21PM -0400, Jim Quinlan wrote:
> Instead of invoking "clk_disable_unprepare(pcie->clk)" in
> a number of error paths.

It's nice if the commit log is readable by itself, without reading the
subject line as the first line of the commit log.  Same way a title is
not directly part of an article/essay/book itself.
Markus Elfring July 3, 2024, 6:45 p.m. UTC | #2
> [-- Attachment #1: Type: text/plain, Size: 1600 bytes --]

Can improved adjustments be provided as regular diff data (without an extra attachment)?


> Instead of invoking "clk_disable_unprepare(pcie->clk)" in
> a number of error paths.

* Can a wording approach (like the following) be a better change description?
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.10-rc6#n45

  Add a jump target so that a bit of exception handling can be better reused
  at the end of this function implementation.

* How do you think about to use a summary phrase like
  “Use more common error handling code in brcm_pcie_probe()”?



…
> +++ b/drivers/pci/controller/pcie-brcmstb.c>  	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);
…

Does this software update complete the exception handling?

Would you like to add any tags (like “Fixes” and “Cc”) accordingly?


…
> @@ -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:
…

I suggest to add a blank line before the second label.

Regards,
Markus
diff mbox series

Patch

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;