linux-kernel - Re: [PATCH v2 7/7] Bluetooth: btqcomsmd: Qualcomm WCNSS HCI driver

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Message-ID: <20151014205610.GL24668@usrtlx11787.corpusers.net>
Date:	Wed, 14 Oct 2015 13:56:10 -0700
From:	Bjorn Andersson <bjorn.andersson@...ymobile.com>
To:	yfw <fengwei.yin@...aro.org>
CC:	Marcel Holtmann <marcel@...tmann.org>,
	Gustavo Padovan <gustavo@...ovan.org>,
	Johan Hedberg <johan.hedberg@...il.com>,
	Andy Gross <agross@...eaurora.org>,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-bluetooth@...r.kernel.org" <linux-bluetooth@...r.kernel.org>
Subject: Re: [PATCH v2 7/7] Bluetooth: btqcomsmd: Qualcomm WCNSS HCI driver

On Wed 14 Oct 08:10 PDT 2015, yfw wrote:

[..]
> > diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
[..]
> > +static int btqcomsmd_probe(struct qcom_smd_device *sdev)
> > +{
> > +	struct qcom_smd_channel *acl;
> > +	struct btqcomsmd *btq;
> > +	struct hci_dev *hdev;
> > +	int ret;
> > +
> > +	acl = qcom_smd_open_channel(sdev,
> > +				    "APPS_RIVA_BT_ACL",
> > +				    btqcomsmd_acl_callback);
> > +	if (IS_ERR(acl))
> > +		return PTR_ERR(acl);
> Do we need to close acl channel in following failure path and
> btqcomsmd_remove?
> 

As the life cycle of the channels implicitly follow the life cycle of
the qcom_smd_device the channel is supposed to be released by the
caller of probe upon failure.

I'll make sure this is documented in qcom_smd_open_channel()


Thanks for the review.

Regards,
Bjorn
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