diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index be3851cffb73..491a1e0f4fa3 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -934,6 +934,27 @@ static ssize_t __ffs_epfile_read_data(struct ffs_epfile *epfile,
 	return ret;
 }
 
+static struct ffs_ep *ffs_epfile_wait_ep(struct file *file)
+{
+	struct ffs_epfile *epfile = file->private_data;
+	struct ffs_ep *ep;
+	int ret;
+
+	/* Wait for endpoint to be enabled */
+	ep = epfile->ep;
+	if (!ep) {
+		if (file->f_flags & O_NONBLOCK)
+			return ERR_PTR(-EAGAIN);
+
+		ret = wait_event_interruptible(
+				epfile->ffs->wait, (ep = epfile->ep));
+		if (ret)
+			return ERR_PTR(-EINTR);
+	}
+
+	return ep;
+}
+
 static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
 {
 	struct ffs_epfile *epfile = file->private_data;
@@ -947,17 +968,9 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
 	if (WARN_ON(epfile->ffs->state != FFS_ACTIVE))
 		return -ENODEV;
 
-	/* Wait for endpoint to be enabled */
-	ep = epfile->ep;
-	if (!ep) {
-		if (file->f_flags & O_NONBLOCK)
-			return -EAGAIN;
-
-		ret = wait_event_interruptible(
-				epfile->ffs->wait, (ep = epfile->ep));
-		if (ret)
-			return -EINTR;
-	}
+	ep = ffs_epfile_wait_ep(file);
+	if (IS_ERR(ep))
+		return PTR_ERR(ep);
 
 	/* Do we halt? */
 	halt = (!io_data->read == !epfile->in);
@@ -1280,16 +1293,9 @@ static long ffs_epfile_ioctl(struct file *file, unsigned code,
 		return -ENODEV;
 
 	/* Wait for endpoint to be enabled */
-	ep = epfile->ep;
-	if (!ep) {
-		if (file->f_flags & O_NONBLOCK)
-			return -EAGAIN;
-
-		ret = wait_event_interruptible(
-				epfile->ffs->wait, (ep = epfile->ep));
-		if (ret)
-			return -EINTR;
-	}
+	ep = ffs_epfile_wait_ep(file);
+	if (IS_ERR(ep))
+		return PTR_ERR(ep);
 
 	spin_lock_irq(&epfile->ffs->eps_lock);