This is a note to let you know that I've just added the patch titled
gpio: sysfs: fix memory leak in gpiod_export_link
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
gpio-sysfs-fix-memory-leak-in-gpiod_export_link.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0f303db08df0df9bd0966443ad6001e63960af16 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@xxxxxxxxxx>
Date: Mon, 26 Jan 2015 12:02:45 +0100
Subject: gpio: sysfs: fix memory leak in gpiod_export_link
From: Johan Hovold <johan@xxxxxxxxxx>
commit 0f303db08df0df9bd0966443ad6001e63960af16 upstream.
Fix memory leak in the gpio sysfs interface due to failure to drop
reference to device returned by class_find_device when creating a link.
Fixes: a4177ee7f1a8 ("gpiolib: allow exported GPIO nodes to be named using sysfs links")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpio/gpiolib.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -911,6 +911,7 @@ int gpiod_export_link(struct device *dev
if (tdev != NULL) {
status = sysfs_create_link(&dev->kobj, &tdev->kobj,
name);
+ put_device(tdev);
} else {
status = -ENODEV;
}
Patches currently in stable-queue which might be from johan@xxxxxxxxxx are
queue-3.14/gpio-sysfs-fix-memory-leak-in-gpiod_sysfs_set_active_low.patch
queue-3.14/gpio-sysfs-fix-memory-leak-in-gpiod_export_link.patch
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