Re: [PATCH] usb: typec: qcom-pmic-typec: avoid uninit values in dev_dbg() error paths

[Bryan O'Donoghue]

On 30/06/2026 13:01, Vasiliy Kovalev wrote:
> Several functions take a 'goto done' shortcut on regmap_read() (or
> switch default) failure before assigning locals that the trailing
> dev_dbg() then formats.
>
> Initialize the affected locals at declaration.
>
> Found by Linux Verification Center (linuxtesting.org) with Svace static
> analysis tool.
>
> Fixes: a4422ff22142 ("usb: typec: qcom: Add Qualcomm PMIC Type-C driver")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Vasiliy Kovalev <kovalev@xxxxxxxxxxxx>
> ---
>   drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c | 9 +++++----
>   1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c
> index bf985efe1cd6..c8379cdcb6da 100644
> --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c
> +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c
> @@ -366,7 +366,7 @@ static int qcom_pmic_typec_port_get_cc(struct tcpc_dev *tcpc,
>   	struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port;
>   	struct device *dev = pmic_typec_port->dev;
>   	unsigned int misc, val;
> -	bool attached;
> +	bool attached = false;
>   	int ret = 0;
>   
>   	ret = regmap_read(pmic_typec_port->regmap,
> @@ -461,8 +461,8 @@ static int qcom_pmic_typec_port_set_cc(struct tcpc_dev *tcpc,
>   	struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc);
>   	struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port;
>   	struct device *dev = pmic_typec_port->dev;
> -	unsigned int mode, currsrc;
> -	unsigned int misc;
> +	unsigned int mode = 0, currsrc = 0;
> +	unsigned int misc = 0;
>   	unsigned long flags;
>   	int ret;
>   
> @@ -535,7 +535,8 @@ static int qcom_pmic_typec_port_set_vconn(struct tcpc_dev *tcpc, bool on)
>   	struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc);
>   	struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port;
>   	struct device *dev = pmic_typec_port->dev;
> -	unsigned int orientation, misc, mask, value;
> +	unsigned int orientation = 0, misc = 0, value = 0;
> +	unsigned int mask;
>   	unsigned long flags;
>   	int ret;

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>

---
bod