Commit 0f303db0 authored by Johan Hovold's avatar Johan Hovold Committed by Linus Walleij

gpio: sysfs: fix memory leak in gpiod_export_link

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: a4177ee7 ("gpiolib: allow exported GPIO nodes to be named
using sysfs links")
Cc: stable <stable@vger.kernel.org>	# v2.6.32
Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent b184c388
...@@ -648,6 +648,7 @@ int gpiod_export_link(struct device *dev, const char *name, ...@@ -648,6 +648,7 @@ int gpiod_export_link(struct device *dev, const char *name,
if (tdev != NULL) { if (tdev != NULL) {
status = sysfs_create_link(&dev->kobj, &tdev->kobj, status = sysfs_create_link(&dev->kobj, &tdev->kobj,
name); name);
put_device(tdev);
} else { } else {
status = -ENODEV; status = -ENODEV;
} }
......
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