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| author | Johan Hovold <johan@kernel.org> | 2015-01-26 12:02:45 +0100 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2015-02-10 13:38:45 +0000 |
| commit | e3edeb67ce2f98660d296b1c7c68cb37f0bf22b4 (patch) | |
| tree | 8bb18a62f0396836ce277bc0d41baf5aa8398107 | |
| parent | a5ff5fd2a9a92431e99609f294fcd102bf4b2a58 (diff) | |
| download | linux-stable-e3edeb67ce2f98660d296b1c7c68cb37f0bf22b4.tar.gz linux-stable-e3edeb67ce2f98660d296b1c7c68cb37f0bf22b4.tar.bz2 linux-stable-e3edeb67ce2f98660d296b1c7c68cb37f0bf22b4.zip | |
gpio: sysfs: fix memory leak in gpiod_export_link
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@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[ luis: backported to 3.16:
- file rename: drivers/gpio/gpiolib-sysfs.c -> drivers/gpio/gpiolib.c ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
| -rw-r--r-- | drivers/gpio/gpiolib.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index b9b955530596..69fc2fcfc3e9 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -911,6 +911,7 @@ int gpiod_export_link(struct device *dev, const char *name, if (tdev != NULL) { status = sysfs_create_link(&dev->kobj, &tdev->kobj, name); + put_device(tdev); } else { status = -ENODEV; } |