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path: root/drivers/char/watchdog/mv64x60_wdt.c
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Diffstat (limited to 'drivers/char/watchdog/mv64x60_wdt.c')
-rw-r--r--drivers/char/watchdog/mv64x60_wdt.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/char/watchdog/mv64x60_wdt.c b/drivers/char/watchdog/mv64x60_wdt.c
index e990e3a..7b48127 100644
--- a/drivers/char/watchdog/mv64x60_wdt.c
+++ b/drivers/char/watchdog/mv64x60_wdt.c
@@ -132,6 +132,7 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int timeout;
+ int options;
void __user *argp = (void __user *)arg;
static struct watchdog_info info = {
.options = WDIOF_SETTIMEOUT |
@@ -157,7 +158,15 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file,
return -EOPNOTSUPP;
case WDIOC_SETOPTIONS:
- return -EOPNOTSUPP;
+ if (get_user(options, (int __user *)argp))
+ return -EFAULT;
+
+ if (options & WDIOS_DISABLECARD)
+ mv64x60_wdt_handler_disable();
+
+ if (options & WDIOS_ENABLECARD)
+ mv64x60_wdt_handler_enable();
+ break;
case WDIOC_KEEPALIVE:
mv64x60_wdt_service();
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