From: Joe Perches <joe@perches.com>
To: 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
Cc: 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 04:17:35 -0700 [thread overview]
Message-ID: <1505906255.2153.3.camel@perches.com> (raw)
In-Reply-To: <15cec6eac63ffc9f12f1d16aff913eccad670f77.1505817563.git.arvind.yadav.cs@gmail.com>
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
next prev parent reply other threads:[~2017-09-20 11:17 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 [this message]
2017-09-20 14:49 ` Viresh Kumar
2017-09-20 16:58 ` arvind
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