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From: Bjorn Andersson <bjorn.andersson-/MT0OVThwyLZJqsBc5GL+g@public.gmane.org>
To: Jeffrey Hugo <jhugo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Cc: Ohad Ben-Cohen <ohad-Ix1uc/W3ht7QT0dZR+AlfA@public.gmane.org>,
	Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
	Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	Ian Campbell
	<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
	Grant Likely
	<grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Suman Anna <s-anna-l0cyMroinI0@public.gmane.org>,
	"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Eric Holmberg <eholmber-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	"Cavin,
	Courtney"
	<Courtney.Cavin-/MT0OVThwyLZJqsBc5GL+g@public.gmane.org>
Subject: Re: [PATCH v4] hwspinlock: qcom: Add support for Qualcomm HW Mutex block
Date: Tue, 30 Sep 2014 15:27:55 -0700	[thread overview]
Message-ID: <20140930222754.GX28481@sonymobile.com> (raw)
In-Reply-To: <542B2B4A.7060002-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>

On Tue 30 Sep 15:14 PDT 2014, Jeffrey Hugo wrote:

> On 9/29/2014 10:35 PM, Bjorn Andersson wrote:

[..]

> > +static int qcom_hwspinlock_probe(struct platform_device *pdev)
> > +{
> > +	struct device_node *node = pdev->dev.of_node;
> > +	const struct of_device_id *match;
> > +	struct hwspinlock_device *bank;
> > +	struct hwspinlock *hwlock;
> > +	struct resource *res;
> > +	void __iomem *iobase;
> > +	unsigned stride, i;
> > +	size_t array_size;
> > +	u32 num_locks;
> > +	int ret;
> > +
> > +	match = of_match_device(qcom_hwspinlock_of_match, &pdev->dev);
> Didn't this have error handling in v2?

It did, but as this is a platform_device and we only support DTthere is no way
match will be NULL if we end up here. So the possible check would be to see
that data is non-null, but for this driver that wouldn't make sense.

Regards,
Bjorn
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WARNING: multiple messages have this Message-ID (diff)
From: Bjorn Andersson <bjorn.andersson@sonymobile.com>
To: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>,
	Kumar Gala <galak@codeaurora.org>,
	Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Grant Likely <grant.likely@linaro.org>,
	Suman Anna <s-anna@ti.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-arm-msm@vger.kernel.org" <linux-arm-msm@vger.kernel.org>,
	Eric Holmberg <eholmber@codeaurora.org>,
	"Cavin, Courtney" <Courtney.Cavin@sonymobile.com>
Subject: Re: [PATCH v4] hwspinlock: qcom: Add support for Qualcomm HW Mutex block
Date: Tue, 30 Sep 2014 15:27:55 -0700	[thread overview]
Message-ID: <20140930222754.GX28481@sonymobile.com> (raw)
In-Reply-To: <542B2B4A.7060002@codeaurora.org>

On Tue 30 Sep 15:14 PDT 2014, Jeffrey Hugo wrote:

> On 9/29/2014 10:35 PM, Bjorn Andersson wrote:

[..]

> > +static int qcom_hwspinlock_probe(struct platform_device *pdev)
> > +{
> > +	struct device_node *node = pdev->dev.of_node;
> > +	const struct of_device_id *match;
> > +	struct hwspinlock_device *bank;
> > +	struct hwspinlock *hwlock;
> > +	struct resource *res;
> > +	void __iomem *iobase;
> > +	unsigned stride, i;
> > +	size_t array_size;
> > +	u32 num_locks;
> > +	int ret;
> > +
> > +	match = of_match_device(qcom_hwspinlock_of_match, &pdev->dev);
> Didn't this have error handling in v2?

It did, but as this is a platform_device and we only support DTthere is no way
match will be NULL if we end up here. So the possible check would be to see
that data is non-null, but for this driver that wouldn't make sense.

Regards,
Bjorn

  parent reply	other threads:[~2014-09-30 22:27 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-30  4:35 [PATCH v4] hwspinlock: qcom: Add support for Qualcomm HW Mutex block Bjorn Andersson
2014-09-30  4:35 ` Bjorn Andersson
     [not found] ` <1412051728-3289-1-git-send-email-bjorn.andersson-/MT0OVThwyLZJqsBc5GL+g@public.gmane.org>
2014-09-30 21:48   ` Suman Anna
2014-09-30 21:48     ` Suman Anna
2014-09-30 22:14     ` Bjorn Andersson
2014-09-30 22:14 ` Jeffrey Hugo
     [not found]   ` <542B2B4A.7060002-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-09-30 22:27     ` Bjorn Andersson [this message]
2014-09-30 22:27       ` Bjorn Andersson

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