[kernel] fixes gpio_dev un/reload balancing

Signed-off-by: SHI Bin <shibin@ctsing.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33183 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/generic/files/drivers/char/gpio_dev.c b/target/linux/generic/files/drivers/char/gpio_dev.c
index 0f428bd..c741573 100644 (file)
--- a/target/linux/generic/files/drivers/char/gpio_dev.c
+++ b/target/linux/generic/files/drivers/char/gpio_dev.c
@@ -141,6 +141,8 @@ out:
 static int
 gpio_remove(struct platform_device *dev)
 {
+       device_destroy(gpiodev_class, MKDEV(dev_major, 0));
+       class_destroy(gpiodev_class);
        unregister_chrdev(dev_major, DEVNAME);
        return 0;
 }