From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Sven Peter <sven@svenpeter.dev>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] usb: typec: tipd: Fix spurious fwnode_handle_put in error path
Date: Wed, 16 Nov 2022 14:16:44 +0200 [thread overview]
Message-ID: <Y3TUrDTZl4jM7C66@kuha.fi.intel.com> (raw)
In-Reply-To: <20221114174449.34634-2-sven@svenpeter.dev>
On Mon, Nov 14, 2022 at 06:44:47PM +0100, Sven Peter wrote:
> The err_role_put error path always calls fwnode_handle_put to release
> the fwnode. This path can be reached after probe itself has already
> released that fwnode though. Fix that by moving fwnode_handle_put in the
> happy path to the very end.
>
> Fixes: 18a6c866bb19 ("usb: typec: tps6598x: Add USB role switching logic")
> Signed-off-by: Sven Peter <sven@svenpeter.dev>
This looks like stable material as well.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> ---
> drivers/usb/typec/tipd/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
> index ebc786d728e2..824e573af570 100644
> --- a/drivers/usb/typec/tipd/core.c
> +++ b/drivers/usb/typec/tipd/core.c
> @@ -834,7 +834,6 @@ static int tps6598x_probe(struct i2c_client *client)
> ret = PTR_ERR(tps->port);
> goto err_role_put;
> }
> - fwnode_handle_put(fwnode);
>
> if (tps->status & TPS_STATUS_PLUG_PRESENT) {
> ret = tps6598x_read16(tps, TPS_REG_POWER_STATUS, &tps->pwr_status);
> @@ -858,6 +857,7 @@ static int tps6598x_probe(struct i2c_client *client)
> }
>
> i2c_set_clientdata(client, tps);
> + fwnode_handle_put(fwnode);
>
> return 0;
>
thanks,
--
heikki
next prev parent reply other threads:[~2022-11-16 12:19 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-14 17:44 [PATCH 1/4] usb: typec: tipd: Cleanup resources if devm_tps6598_psy_register fails Sven Peter
2022-11-14 17:44 ` [PATCH 2/4] usb: typec: tipd: Fix spurious fwnode_handle_put in error path Sven Peter
2022-11-16 12:16 ` Heikki Krogerus [this message]
2022-11-14 17:44 ` [PATCH 3/4] usb: typec: tipd: Fix typec_unregister_port error paths Sven Peter
2022-11-16 12:20 ` Heikki Krogerus
2022-11-14 17:44 ` [PATCH 4/4] usb: typec: tipd: Move tps6598x_disconnect error path to its own label Sven Peter
2022-11-16 12:30 ` Heikki Krogerus
2022-11-16 12:13 ` [PATCH 1/4] usb: typec: tipd: Cleanup resources if devm_tps6598_psy_register fails Heikki Krogerus
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