--- zzzz-none-000/linux-3.10.107/drivers/usb/usb-skeleton.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/usb/usb-skeleton.c	2021-02-04 17:41:59.000000000 +0000
@@ -14,7 +14,6 @@
 
 #include <linux/kernel.h>
 #include <linux/errno.h>
-#include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/kref.h>
@@ -325,9 +324,8 @@
 		rv = skel_do_read_io(dev, count);
 		if (rv < 0)
 			goto exit;
-		else if (!(file->f_flags & O_NONBLOCK))
+		else
 			goto retry;
-		rv = -EAGAIN;
 	}
 exit:
 	mutex_unlock(&dev->io_mutex);