From 0faf6a3bbae74ca08c2ecc09e5f6d350ad54c1ab Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Sun, 7 Feb 2016 23:35:34 +0200 Subject: [PATCH] mei: wake blocked write on link reset In case of link reset all blocked writes should be interrupted. Note, that currently blocking write is used only through bus layer. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/client.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 3fd070a698ce..5ddc690752c2 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1691,7 +1691,8 @@ out: mutex_unlock(&dev->device_lock); rets = wait_event_interruptible(cl->tx_wait, - cl->writing_state == MEI_WRITE_COMPLETE); + cl->writing_state == MEI_WRITE_COMPLETE || + (!mei_cl_is_connected(cl))); mutex_lock(&dev->device_lock); /* wait_event_interruptible returns -ERESTARTSYS */ if (rets) { @@ -1699,6 +1700,10 @@ out: rets = -EINTR; goto err; } + if (cl->writing_state != MEI_WRITE_COMPLETE) { + rets = -EFAULT; + goto err; + } } rets = size; -- 2.11.0