sound/oss: convert to unlocked_ioctl

These are the final conversions for the ioctl file operation so we can remove
it in the next merge window.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/oss/msnd_pinnacle.c b/sound/oss/msnd_pinnacle.c
index 153d822..9ffd29f 100644
--- a/sound/oss/msnd_pinnacle.c
+++ b/sound/oss/msnd_pinnacle.c
@@ -639,21 +639,26 @@
 	return -EINVAL;
 }
 
-static int dev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	int minor = iminor(inode);
+	int ret;
 
 	if (cmd == OSS_GETVERSION) {
 		int sound_version = SOUND_VERSION;
 		return put_user(sound_version, (int __user *)arg);
 	}
 
-	if (minor == dev.dsp_minor)
-		return dsp_ioctl(file, cmd, arg);
-	else if (minor == dev.mixer_minor)
-		return mixer_ioctl(cmd, arg);
+	ret = -EINVAL;
 
-	return -EINVAL;
+	lock_kernel();
+	if (minor == dev.dsp_minor)
+		ret = dsp_ioctl(file, cmd, arg);
+	else if (minor == dev.mixer_minor)
+		ret = mixer_ioctl(cmd, arg);
+	unlock_kernel();
+
+	return ret;
 }
 
 static void dsp_write_flush(void)
@@ -1109,7 +1114,7 @@
 	.owner		= THIS_MODULE,
 	.read		= dev_read,
 	.write		= dev_write,
-	.ioctl		= dev_ioctl,
+	.unlocked_ioctl	= dev_ioctl,
 	.open		= dev_open,
 	.release	= dev_release,
 };