[PATCH] machzwd warning fix

drivers/char/watchdog/machzwd.c: In function 'zf_ioctl':
drivers/char/watchdog/machzwd.c:327: warning: passing argument 1 of 'zf_ping' makes integer from pointer without a cast

Also some coding-style repairs.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@ftp.linux.org.uk>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/watchdog/machzwd.c

@@ -314,7 +314,7 @@ static int zf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 {
 	void __user *argp = (void __user *)arg;
 	int __user *p = argp;
-	switch(cmd){
+	switch (cmd) {
 	case WDIOC_GETSUPPORT:
 		if (copy_to_user(argp, &zf_info, sizeof(zf_info)))
 			return -EFAULT;
@@ -324,7 +324,7 @@ static int zf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 		return put_user(0, p);
 
 	case WDIOC_KEEPALIVE:
-			zf_ping(NULL);
+		zf_ping(0);
 		break;
 
 	default: