diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index 6ebe89551961..f4509ef9922b 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -446,6 +446,8 @@ int lirc_dev_fop_open(struct inode *inode, struct file *file)
 		return -ERESTARTSYS;
 
 	ir = irctls[iminor(inode)];
+	mutex_unlock(&lirc_dev_lock);
+
 	if (!ir) {
 		retval = -ENODEV;
 		goto error;
@@ -486,8 +488,6 @@ int lirc_dev_fop_open(struct inode *inode, struct file *file)
 	}
 
 error:
-	mutex_unlock(&lirc_dev_lock);
-
 	nonseekable_open(inode, file);
 
 	return retval;