Hi,
On Wed, Nov 02, 2022 at 05:15:42PM +0100, Sven Peter wrote:
> If reading TPS_REG_INT_EVENT1/2 fails in the interrupt handler event1
> and event2 may be uninitialized when they are used to determine
> IRQ_HANDLED vs. IRQ_NONE in the error path.
>
> Fixes: c7260e29dd20 ("usb: typec: tipd: Add short-circuit for no irqs")
> Fixes: 45188f27b3d0 ("usb: typec: tipd: Add support for Apple CD321X")
> Signed-off-by: Sven Peter <sven@xxxxxxxxxxxxx>
> ---
> drivers/usb/typec/tipd/core.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
> index b637e8b378b3..2a77bab948f5 100644
> --- a/drivers/usb/typec/tipd/core.c
> +++ b/drivers/usb/typec/tipd/core.c
> @@ -474,7 +474,7 @@ static void tps6598x_handle_plug_event(struct tps6598x *tps, u32 status)
> static irqreturn_t cd321x_interrupt(int irq, void *data)
> {
> struct tps6598x *tps = data;
> - u64 event;
> + u64 event = 0;
> u32 status;
> int ret;
>
> @@ -519,8 +519,8 @@ static irqreturn_t cd321x_interrupt(int irq, void *data)
> static irqreturn_t tps6598x_interrupt(int irq, void *data)
> {
> struct tps6598x *tps = data;
> - u64 event1;
> - u64 event2;
> + u64 event1 = 0;
> + u64 event2 = 0;
> u32 status;
> int ret;
Reviewed-by: Guido Günther <agx@xxxxxxxxxxx>
Cheers,
-- Guido
