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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Pavel Machek <pavel@denx.de>
Cc: mark.rutland@arm.com, linux-doc@vger.kernel.org,
	rubini@gnudd.com, pantelis.antoniou@konsulko.com, hpa@zytor.com,
	s.trumtrar@pengutronix.de, devel@driverdev.osuosl.org,
	sameo@linux.intel.com, nico@linaro.org, iws@ovro.caltech.edu,
	michal.simek@xilinx.com, kyle.teske@ni.com,
	jgunthorpe@obsidianresearch.com, grant.likely@linaro.org,
	davidb@codeaurora.org, linus.walleij@linaro.org,
	cesarb@cesarb.net, devicetree@vger.kernel.org,
	jason@lakedaemon.net, pawel.moll@arm.com,
	ijc+devicetree@hellion.org.uk, atull@opensource.altera.com,
	galak@codeaurora.org, broonie@kernel.org, philip@balister.org,
	Petr Cvek <petr.cvek@tul.cz>,
	akpm@linux-foundation.org, monstr@monstr.eu,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	balbi@ti.com, davem@davemloft.net, robh+dt@kernel.org,
	rob@landley.net, Josh Cartwright <joshc@ni.com>,
	dinguyen@opensource.altera.com, delicious.quinoa@gma
Subject: Re: [PATCH v11 3/4] add FPGA manager core
Date: Wed, 23 Sep 2015 17:11:06 +0300	[thread overview]
Message-ID: <20150923141106.GH4953@mwanda> (raw)
In-Reply-To: <20150923132354.GB31253@amd>

On Wed, Sep 23, 2015 at 03:23:54PM +0200, Pavel Machek wrote:
> > > +int fpga_mgr_firmware_load(struct fpga_manager *mgr, u32 flags,
> > > +			   const char *image_name)
> > > +{
> > > +	struct device *dev = &mgr->dev;
> > > +	const struct firmware *fw;
> > > +	int ret;
> > > +
> > > +	if (!mgr)
> > > +		return -ENODEV;
> > 
> > Again; I'm of the opinion this is needlessly defensive.
> 
> Not only that, it can never happen. mgr is already dereferenced above.
> 

It's not dereferenced.  We're taking the address of mgr->dev but we
don't dereference mgr.

regards,
dan carpenter

  reply	other threads:[~2015-09-23 14:11 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-22 15:21 [PATCH v11 0/4] FPGA Manager Framework atull
2015-09-22 15:21 ` [PATCH v11 1/4] usage documentation for FPGA manager core atull
2015-09-23  0:50   ` Moritz Fischer
2015-09-22 15:21 ` [PATCH v11 2/4] fpga manager: add sysfs interface document atull
     [not found]   ` <1442935271-10375-3-git-send-email-atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
2015-09-23  0:52     ` Moritz Fischer
2015-09-22 15:21 ` [PATCH v11 3/4] add FPGA manager core atull
     [not found]   ` <1442935271-10375-4-git-send-email-atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
2015-09-22 22:29     ` Josh Cartwright
2015-09-23 13:23       ` Pavel Machek
2015-09-23 14:11         ` Dan Carpenter [this message]
2015-09-23 16:15           ` atull
2015-09-24  7:49             ` Dan Carpenter
2015-09-24 20:47               ` atull
2015-09-24 21:13                 ` Pavel Machek
2015-09-25 10:00                 ` Dan Carpenter
2015-09-23 17:10       ` atull
2015-09-23 23:03         ` Josh Cartwright
2015-09-24 20:24           ` atull
2015-09-22 15:21 ` [PATCH v11 4/4] fpga manager: add driver for socfpga fpga manager atull
2015-09-22 22:47   ` Josh Cartwright
  -- strict thread matches above, loose matches on Subject: below --
2015-10-07 15:36 [PATCH v11 0/4] FPGA Manager Framework atull
2015-10-07 15:36 ` [PATCH v11 3/4] add FPGA manager core atull

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