diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 00345a51f18d..7132f3d50c50 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -1350,7 +1350,10 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf,
 	if (!buffer)
 		return -ENOMEM;
 
-	mutex_lock(&data->io_mutex);
+	retval = mutex_lock_interruptible(&data->io_mutex);
+	if (retval < 0)
+		goto exit_nolock;
+
 	if (data->zombie) {
 		retval = -ENODEV;
 		goto exit;
@@ -1473,6 +1476,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf,
 
 exit:
 	mutex_unlock(&data->io_mutex);
+exit_nolock:
 	kfree(buffer);
 	return retval;
 }