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authorJohan Hovold <johan@kernel.org>2015-01-26 12:02:45 +0100
committerLinus Walleij <linus.walleij@linaro.org>2015-01-30 10:28:27 +0100
commit0f303db08df0df9bd0966443ad6001e63960af16 (patch)
tree00a442ddbbcabf6cebddb374884b7ab064347c92 /drivers/gpio/gpiolib-sysfs.c
parentgpio: mcp23s08: handle default gpio base (diff)
downloadlinux-0f303db08df0df9bd0966443ad6001e63960af16.tar.xz
linux-0f303db08df0df9bd0966443ad6001e63960af16.zip
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: 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>
Diffstat (limited to 'drivers/gpio/gpiolib-sysfs.c')
-rw-r--r--drivers/gpio/gpiolib-sysfs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index f62aa115d79a..4667830f350e 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -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;
}