Commit cbe4d8c0 authored Oct 17, 2017 by Greg Kroah-Hartman

Revert "usb: gadget: inode.c: fix unbalanced spin_lock in ep0_write"

This reverts commit abb540b5 which is
commit b7bd98b7db9f upstream.  I had added it to make another patch
apply cleanly, but as Ben points out, that was wrong.

Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: David Eccher <d.eccher@gmail.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 954e2ed4

drivers/usb/gadget/legacy/inode.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1231,10 +1231,11 @@ ep0_write (struct file fd, const char __user buf, size_t len, loff_t *ptr)
		dev->gadget->ep0, dev->req,
		GFP_KERNEL);
		}
		spin_lock_irq(&dev->lock);
		--dev->udc_usage;
		if (retval < 0) {
		spin_lock_irq (&dev->lock);
		clean_req (dev->gadget->ep0, dev->req);
		spin_unlock_irq (&dev->lock);
		} else
		retval = len;