From: Viresh Kumar <viresh.kumar@linaro.org>
To: Joe Perches <joe@perches.com>
Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>,
vireshk@kernel.org, nm@ti.com, sboyd@codeaurora.org,
rjw@rjwysocki.net, pavel@ucw.cz, len.brown@intel.com,
gregkh@linuxfoundation.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] PM / OPP: Handle return value of kasprintf
Date: Wed, 20 Sep 2017 07:49:02 -0700 [thread overview]
Message-ID: <20170920144902.GL30848@ubuntu> (raw)
In-Reply-To: <1505906255.2153.3.camel@perches.com>
On 20-09-17, 04:17, Joe Perches wrote:
> On Wed, 2017-09-20 at 12:29 +0530, Arvind Yadav wrote:
> > kasprintf() can fail here and we must check its return value.
> []
> > diff --git a/drivers/base/power/opp/debugfs.c b/drivers/base/power/opp/debugfs.c
> []
> > @@ -45,7 +45,8 @@ static bool opp_debug_create_supplies(struct dev_pm_opp *opp,
> >
> > for (i = 0; i < opp_table->regulator_count; i++) {
> > name = kasprintf(GFP_KERNEL, "supply-%d", i);
> > -
> > + if (!name)
> > + return false;
> > /* Create per-opp directory */
> > d = debugfs_create_dir(name, pdentry);
>
> Probably more sensible to avoid the kasprintf/kfree
> and just have
> char name[20];
> on the stack
Sure.
@Arvind: I will let you write that patch.
--
viresh
next prev parent reply other threads:[~2017-09-20 14:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-20 6:59 [PATCH] PM / OPP: Handle return value of kasprintf Arvind Yadav
2017-09-20 11:17 ` Joe Perches
2017-09-20 14:49 ` Viresh Kumar [this message]
2017-09-20 16:58 ` arvind
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