On Mon, Oct 30, 2017 at 08:35:30AM +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfr...@users.sourceforge.net>
> Date: Mon, 30 Oct 2017 08:28:06 +0100
>
> Adjust a jump target so that a specific error message is stored only once
> at the end of this function implementation.
> Replace two calls of the function "dev_err" by goto statements.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
This is fine by me except that the change in the name of the goto label
seems spurious. If think it should be left as-is. But if you really want to
change it then as it is an error path I should suggest it describe that its
an error and what unwinding is done, f.e. err_remove_domain.
> ---
> drivers/pci/host/pcie-rcar.c | 15 ++++++---------
> 1 file changed, 6 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
> index 12796eccb2be..38101f8bebf1 100644
> --- a/drivers/pci/host/pcie-rcar.c
> +++ b/drivers/pci/host/pcie-rcar.c
> @@ -873,18 +873,14 @@ static int rcar_pcie_enable_msi(struct rcar_pcie *pcie)
> err = devm_request_irq(dev, msi->irq1, rcar_pcie_msi_irq,
> IRQF_SHARED | IRQF_NO_THREAD,
> rcar_msi_irq_chip.name, pcie);
> - if (err < 0) {
> - dev_err(dev, "failed to request IRQ: %d\n", err);
> - goto err;
> - }
> + if (err < 0)
> + goto report_request_failure;
>
> err = devm_request_irq(dev, msi->irq2, rcar_pcie_msi_irq,
> IRQF_SHARED | IRQF_NO_THREAD,
> rcar_msi_irq_chip.name, pcie);
> - if (err < 0) {
> - dev_err(dev, "failed to request IRQ: %d\n", err);
> - goto err;
> - }
> + if (err < 0)
> + goto report_request_failure;
>
> /* setup MSI data target */
> msi->pages = __get_free_pages(GFP_KERNEL, 0);
> @@ -898,7 +894,8 @@ static int rcar_pcie_enable_msi(struct rcar_pcie *pcie)
>
> return 0;
>
> -err:
> +report_request_failure:
> + dev_err(dev, "failed to request IRQ: %d\n", err);
> irq_domain_remove(msi->domain);
> return err;
> }
> --
> 2.14.3
>
