[PATCH] PCI: amlogic: The check for devm_add_action_or_reset's return value added
Bjorn Helgaas
helgaas at kernel.org
Thu Dec 29 11:43:33 PST 2022
Hi Aleksandr,
Thanks for the patch!
On Tue, Dec 20, 2022 at 12:21:37PM +0300, Aleksandr Burakov wrote:
> The return value of the function devm_add_action_or_reset() was not
> checked hence an error code would not be returned.
You can save Lorenzo and Krzysztof some work by:
- Rewording the subject line in the typical "<verb> <object>"
imperative form, e.g., "Check for devm_add_action_or_reset()
failure"
- Rewording the commit log similarly. Note that the existing commit
only describes the current situation and doesn't actually say what
the patch does.
Here's a good guide to commit logs: https://cbea.ms/git-commit/
> Fixes: 9c0ef6d34fdb ("PCI: amlogic: Add the Amlogic Meson PCIe controller driver")
> Signed-off-by: Aleksandr Burakov <a.burakov at rosalinux.ru>
> ---
> drivers/pci/controller/dwc/pci-meson.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/dwc/pci-meson.c b/drivers/pci/controller/dwc/pci-meson.c
> index c1527693bed9..3d82f0b65480 100644
> --- a/drivers/pci/controller/dwc/pci-meson.c
> +++ b/drivers/pci/controller/dwc/pci-meson.c
> @@ -187,9 +187,13 @@ static inline struct clk *meson_pcie_probe_clock(struct device *dev,
> return ERR_PTR(ret);
> }
>
> - devm_add_action_or_reset(dev,
> + ret = devm_add_action_or_reset(dev,
> (void (*) (void *))clk_disable_unprepare,
> clk);
> + if (ret) {
> + dev_err(dev, "couldn't reset clk\n");
> + return ERR_PTR(ret);
> + }
>
> return clk;
> }
> --
> 2.25.1
>
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