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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: a4177ee7f1
("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>
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@ -648,6 +648,7 @@ int gpiod_export_link(struct device *dev, const char *name,
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if (tdev != NULL) {
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if (tdev != NULL) {
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status = sysfs_create_link(&dev->kobj, &tdev->kobj,
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status = sysfs_create_link(&dev->kobj, &tdev->kobj,
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name);
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name);
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put_device(tdev);
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} else {
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} else {
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status = -ENODEV;
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status = -ENODEV;
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}
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}
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