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Commit b74d8831 authored by Alexander Usyskin's avatar Alexander Usyskin Committed by Greg Kroah-Hartman
Browse files

mei: amthif: interrupt reader on link reset 



In case of link reset all waiting readers should be interrupted.

Signed-off-by: default avatarAlexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4bddf56f

drivers/misc/mei/amthif.c

+7 −1
Original line number Original line Diff line number Diff line
@@ -122,7 +122,8 @@ int mei_amthif_read(struct mei_device *dev, struct file *file, 
		mutex_unlock(&dev->device_lock);

		mutex_unlock(&dev->device_lock);





		wait_ret = wait_event_interruptible(cl->rx_wait,

		wait_ret = wait_event_interruptible(cl->rx_wait,

					!list_empty(&cl->rd_completed));

					!list_empty(&cl->rd_completed) ||

					!mei_cl_is_connected(cl));





		/* Locking again the Mutex */

		/* Locking again the Mutex */

		mutex_lock(&dev->device_lock);

		mutex_lock(&dev->device_lock);
@@ -130,6 +131,11 @@ int mei_amthif_read(struct mei_device *dev, struct file *file, 
		if (wait_ret)

		if (wait_ret)

			return -ERESTARTSYS;

			return -ERESTARTSYS;





		if (!mei_cl_is_connected(cl)) {

			rets = -EBUSY;

			goto out;

		}



		cb = mei_cl_read_cb(cl, file);

		cb = mei_cl_read_cb(cl, file);

	}

	}