From a19bf05359e6c5249766cbbf2937ef83fc9001f9 Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Tue, 6 Nov 2018 12:04:40 +0200 Subject: [PATCH] mei: expedite ioctl return on the notify set operation error The notify set operation ioctl will wait till timeout is expired even in case when the FW returned an error. Check the status field of the client object in wait_event_timeout() to determine if the caller can return earlier. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/client.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index ee58561ceb08..1fe9426ce48b 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1357,7 +1357,9 @@ int mei_cl_notify_request(struct mei_cl *cl, mutex_unlock(&dev->device_lock); wait_event_timeout(cl->wait, - cl->notify_en == request || !mei_cl_is_connected(cl), + cl->notify_en == request || + cl->status || + !mei_cl_is_connected(cl), mei_secs_to_jiffies(MEI_CL_CONNECT_TIMEOUT)); mutex_lock(&dev->device_lock);