Commit 6c0d6701 authored Jan 27, 2017 by Alexander Usyskin Committed by Greg Kroah-Hartman Jan 31, 2017

mei: abort waiting for notification on unsupported HW



On legacy HW, pre Skylake, the notifications are not supported,
return -EOPNOTSUPP in mei_cl_notify_get and prevent
waiting indefinitely.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 7c47d2ca

drivers/misc/mei/client.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -1428,6 +1428,11 @@ int mei_cl_notify_get(struct mei_cl cl, bool block, bool notify_ev)

		dev = cl->dev;

		if (!dev->hbm_f_ev_supported) {
		cl_dbg(dev, cl, "notifications not supported\n");
		return -EOPNOTSUPP;
		}

		if (!mei_cl_is_connected(cl))
		return -ENODEV;