Hello!
On 3/13/2017 9:24 AM, Yoshihiro Shimoda wrote:
This patch fixes an issue that this driver doesn't take care of the runtime
PM. This code assumed that devm_phy_create() called pm_runtime_enable(dev),
but it misunderstood the dev_phy_create()'s specification.
This driver should call the own pm_runtime_pm() before dev_phy_create().
Its own?
Fixes: f3b5a8d9b50d ("phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver")
Signed-off-by: Yoshihiro Shimoda <[email protected]>
---
drivers/phy/phy-rcar-gen3-usb2.c | 29 +++++++++++++++++++++++------
1 file changed, 23 insertions(+), 6 deletions(-)
diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c
index afb4d04..23c4e86 100644
--- a/drivers/phy/phy-rcar-gen3-usb2.c
+++ b/drivers/phy/phy-rcar-gen3-usb2.c
[...]
@@ -454,15 +462,22 @@ static int rcar_gen3_phy_usb2_probe(struct
platform_device *pdev)
provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
if (IS_ERR(provider)) {
dev_err(dev, "Failed to register PHY provider\n");
+ ret = PTR_ERR(provider);
+ goto error;
} else if (channel->has_otg) {
int ret;
ret = device_create_file(dev, &dev_attr_role);
if (ret < 0)
- return ret;
+ goto error;
}
return PTR_ERR_OR_ZERO(provider);
Here 'provider' can no longer contain error -- *return* 0 seems to fit
better.
+
+error:
+ pm_runtime_disable(dev);
+
+ return ret;
}
static int rcar_gen3_phy_usb2_remove(struct platform_device *pdev)
[...]
MBR, Sergei
