From: Markus Elfring <Markus.Elfring@web.de>
To: Navid Emamdoost <navid.emamdoost@gmail.com>,
linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
Navid Emamdoost <emamd001@umn.edu>, Kangjie Lu <kjlu@umn.edu>,
Stephen McCamant <smccaman@umn.edu>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Michal Simek <michal.simek@xilinx.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] clocksource/drivers: Fix memory leak in ttc_setup_clockevent
Date: Tue, 22 Oct 2019 10:26:41 +0200 [thread overview]
Message-ID: <fb5d5331-9a89-8370-1e61-396dd05f291a@web.de> (raw)
In-Reply-To: <20191021201848.4231-1-navid.emamdoost@gmail.com>
> In the impelementation of ttc_setup_clockevent() the allocated memory
> for ttcce should be released if clk_notifier_register() fails.
* Please avoid the copying of typos from previous change descriptions.
* Under which circumstances will an “imperative mood” matter for you here?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=7d194c2100ad2a6dded545887d02754948ca5241#n151
> +++ b/drivers/clocksource/timer-cadence-ttc.c
> @@ -424,6 +424,7 @@ static int __init ttc_setup_clockevent(struct clk *clk,
> &ttcce->ttc.clk_rate_change_nb);
> if (err) {
> pr_warn("Unable to register clock notifier.\n");
> + kfree(ttcce);
> return err;
> }
This addition looks correct.
But I would prefer to move such exception handling code to the end of
this function implementation so that duplicate source code will be reduced.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/coding-style.rst?id=7d194c2100ad2a6dded545887d02754948ca5241#n450
Regards,
Markus
next prev parent reply other threads:[~2019-10-22 8:27 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-21 20:18 [PATCH] clocksource/drivers: Fix memory leak in ttc_setup_clockevent Navid Emamdoost
2019-10-22 8:26 ` Markus Elfring [this message]
2019-10-22 8:51 ` Michal Simek
2019-10-23 4:31 ` [PATCH v2] " Navid Emamdoost
2019-10-23 7:32 ` Michal Simek
2019-10-23 8:00 ` Markus Elfring
2019-10-23 4:47 ` [PATCH] clocksource/drivers: Fix error handling in ttc_setup_clocksource Navid Emamdoost
2019-10-23 7:24 ` Markus Elfring
2019-10-23 8:20 ` Markus Elfring
2019-10-23 10:31 ` Markus Elfring
2019-12-14 22:54 ` Navid Emamdoost
2019-12-16 13:41 ` Daniel Lezcano
2019-12-17 15:09 ` Michal Simek
2019-10-23 4:50 ` [PATCH] clocksource/drivers: Fix memory leak in ttc_setup_clockevent Navid Emamdoost
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