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[rdc] fix watchdog driver unregistering, patch by Bernhard Loos

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19979 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian 2010-03-04 20:48:43 +00:00
parent 37f69cee3c
commit 51b563fb2a

View File

@ -28,6 +28,7 @@
#include <linux/watchdog.h>
#include <linux/uaccess.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <asm/rdc321x_defs.h>
@ -123,8 +124,12 @@ static int rdc321x_wdt_open(struct inode *inode, struct file *file)
static int rdc321x_wdt_release(struct inode *inode, struct file *file)
{
if (rdc321x_wdt_dev.close_expected)
rdc321x_wdt_stop();
int res;
if (rdc321x_wdt_dev.close_expected) {
res = rdc321x_wdt_stop();
if (res)
return res;
}
rdc321x_wdt_dev.inuse = false;
@ -181,7 +186,7 @@ static ssize_t rdc321x_wdt_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
size_t i;
if (!count)
return -EIO;
@ -248,6 +253,10 @@ static int __devexit rdc321x_wdt_remove(struct platform_device *pdev)
{
if (rdc321x_wdt_dev.inuse)
rdc321x_wdt_dev.inuse = 0;
while (timer_pending(&rdc321x_wdt_dev.timer))
msleep(100);
misc_deregister(&rdc321x_wdt_misc);
return 0;
}