Linux GPIO subsystem development
 help / color / mirror / Atom feed
From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Kent Gibson <warthog618@gmail.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Viresh Kumar <viresh.kumar@linaro.org>
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	Mirsad Goran Todorovac <mirsad.todorovac@alu.unizg.hr>
Subject: [PATCH] gpio: sim: fix a memory leak
Date: Thu, 16 Feb 2023 15:15:55 +0100	[thread overview]
Message-ID: <20230216141555.116219-1-brgl@bgdev.pl> (raw)

Fix an inverted logic bug in gpio_sim_remove_hogs() that leads to GPIO
hog structures never being freed.

Fixes: cb8c474e79be ("gpio: sim: new testing module")
Reported-by: Mirsad Goran Todorovac <mirsad.todorovac@alu.unizg.hr>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
---
 drivers/gpio/gpio-sim.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index 60514bc5454f..9e3893b19e4f 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -736,7 +736,7 @@ static void gpio_sim_remove_hogs(struct gpio_sim_device *dev)
 
 	gpiod_remove_hogs(dev->hogs);
 
-	for (hog = dev->hogs; !hog->chip_label; hog++) {
+	for (hog = dev->hogs; hog->chip_label; hog++) {
 		kfree(hog->chip_label);
 		kfree(hog->line_name);
 	}
-- 
2.37.2


             reply	other threads:[~2023-02-16 14:16 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-16 14:15 Bartosz Golaszewski [this message]
2023-02-16 14:42 ` [PATCH] gpio: sim: fix a memory leak Andy Shevchenko
2023-02-16 14:49   ` Bartosz Golaszewski
2023-02-17 11:05 ` Bartosz Golaszewski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230216141555.116219-1-brgl@bgdev.pl \
    --to=brgl@bgdev.pl \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=linus.walleij@linaro.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mirsad.todorovac@alu.unizg.hr \
    --cc=viresh.kumar@linaro.org \
    --cc=warthog618@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox