diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index fd3860d5..da3b5c0 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -249,8 +249,6 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, const char __user *buf,
 		goto out_unlock;
 	}
 
-	start = ktime_get();
-
 	if (!dev->tx_ir) {
 		ret = -EINVAL;
 		goto out_unlock;
@@ -343,6 +341,8 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, const char __user *buf,
 		duration += txbuf[i];
 	}
 
+	start = ktime_get();
+
 	ret = dev->tx_ir(dev, txbuf, count);
 	if (ret < 0)
 		goto out_kfree;