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gpio: sysfs: fix memory leak in gpiod_export_link

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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")
Cc: stable <stable@vger.kernel.org>	# v2.6.32
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Johan Hovold 2015-01-26 12:02:45 +01:00 committed by Linus Walleij
parent b184c388f7
commit 0f303db08d
1 changed files with 1 additions and 0 deletions
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drivers/gpio/gpiolib-sysfs.c
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@ -648,6 +648,7 @@ 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;
}