2018-07-17 12:06:35

by Raghu Halharvi

Subject: [PATCH] Bluetooth:hci_bcm:Check return value from devm_clk_get

* Check return value from devm_clk_get & return appropriate error.
---
drivers/bluetooth/hci_bcm.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index 441f5e1deb11..1295cc89d702 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -910,6 +910,8 @@ static int bcm_get_resources(struct bcm_device *dev)
return 0;

dev->clk = devm_clk_get(dev->dev, NULL);
+ if (IS_ERR(dev->clk))
+ return PTR_ERR(dev->clk);

dev->device_wakeup = devm_gpiod_get_optional(dev->dev, "device-wakeup",
GPIOD_OUT_LOW);
--
2.17.1

2018-07-18 12:09:55

by Marcel Holtmann

Subject: Re: [PATCH] Bluetooth:hci_bcm:Check return value from devm_clk_get

Hi Raghu,

> * Check return value from devm_clk_get & return appropriate error.
> ---
> drivers/bluetooth/hci_bcm.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
> index 441f5e1deb11..1295cc89d702 100644
> --- a/drivers/bluetooth/hci_bcm.c
> +++ b/drivers/bluetooth/hci_bcm.c
> @@ -910,6 +910,8 @@ static int bcm_get_resources(struct bcm_device *dev)
> return 0;
>
> dev->clk = devm_clk_get(dev->dev, NULL);
> + if (IS_ERR(dev->clk))
> + return PTR_ERR(dev->clk);

so I assumed this was not done on purpose and allow for dev->clk = NULL since all other clock handling functions will cope with it. Can someone NAK or ACK this patch?

Regards

Marcel