lkml.org 
[lkml]   [2019]   [Dec]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] PCI: tegra: Correctly handle return code of pm_runtime_get_sync()
On Mon, Dec 16, 2019 at 10:34:15AM +0100, David Engraf wrote:
> pm_runtime_get_sync() returns the device's usage counter. This might
> be >0 if the device is already powered up or CONFIG_PM is disabled.
>
> Abort probe function on real error only.
>
> Signed-off-by: David Engraf <david.engraf@sysgo.com>

Thanks for this, looks OK to me.

As this is a fix, can you add the following fixes tag?

Fixes: da76ba50963b ("PCI: tegra: Add power management support")

And whilst doing that can you rename the subject to "PCI: tegra: Fix return
value check of pm_runtime_get_sync" - it's slightly shorter and has the
word fix in the title.

Thanks,

Andrew Murray

> ---
> drivers/pci/controller/pci-tegra.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
> index 673a1725ef38..090b632965e2 100644
> --- a/drivers/pci/controller/pci-tegra.c
> +++ b/drivers/pci/controller/pci-tegra.c
> @@ -2798,7 +2798,7 @@ static int tegra_pcie_probe(struct platform_device *pdev)
>
> pm_runtime_enable(pcie->dev);
> err = pm_runtime_get_sync(pcie->dev);
> - if (err) {
> + if (err < 0) {
> dev_err(dev, "fail to enable pcie controller: %d\n", err);
> goto teardown_msi;
> }
> --
> 2.17.1
>

\
 
 \ /
  Last update: 2019-12-16 11:23    [W:0.055 / U:0.672 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site