patch-2.4.0-test4 linux/drivers/char/mixcomwd.c

• Lines: 28
• Date: Wed Jul 12 21:58:42 2000
• Orig file: v2.4.0-test3/linux/drivers/char/mixcomwd.c
• Orig date: Fri Jun 23 21:55:08 2000

diff -u --recursive --new-file v2.4.0-test3/linux/drivers/char/mixcomwd.c linux/drivers/char/mixcomwd.c
@@ -43,6 +43,7 @@
 #include <linux/watchdog.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
+#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
@@ -100,9 +101,11 @@
 static int mixcomwd_release(struct inode *inode, struct file *file)
 {
 
+	lock_kernel();
 #ifndef CONFIG_WATCHDOG_NOWAYOUT
 	if(mixcomwd_timer_alive) {
 		printk(KERN_ERR "mixcomwd: release called while internal timer alive");
+		unlock_kernel();
 		return -EBUSY;
 	}
 	init_timer(&mixcomwd_timer);
@@ -114,6 +117,7 @@
 #endif
 
 	clear_bit(0,&mixcomwd_opened);
+	unlock_kernel();
 	return 0;
 }