This is a note to let you know that I've just added the patch titled
mei: fix return value on disconnect timeout
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mei-fix-return-value-on-disconnect-timeout.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fe2f17eb3da38ac0d5a00c511255bf3a33d16d24 Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Date: Thu, 17 Jul 2014 10:53:38 +0300
Subject: mei: fix return value on disconnect timeout
From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
commit fe2f17eb3da38ac0d5a00c511255bf3a33d16d24 upstream.
wait_event_timeout can return 0 or the remaining jiffies
so return -ETIME if disconnected state not reached.
Signed-off-by: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/misc/mei/client.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -459,7 +459,7 @@ int mei_cl_disconnect(struct mei_cl *cl)
{
struct mei_device *dev;
struct mei_cl_cb *cb;
- int rets, err;
+ int rets;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
@@ -501,23 +501,18 @@ int mei_cl_disconnect(struct mei_cl *cl)
}
mutex_unlock(&dev->device_lock);
- err = wait_event_timeout(dev->wait_recvd_msg,
+ wait_event_timeout(dev->wait_recvd_msg,
MEI_FILE_DISCONNECTED == cl->state,
mei_secs_to_jiffies(MEI_CL_CONNECT_TIMEOUT));
mutex_lock(&dev->device_lock);
+
if (MEI_FILE_DISCONNECTED == cl->state) {
rets = 0;
cl_dbg(dev, cl, "successfully disconnected from FW client.\n");
} else {
- rets = -ENODEV;
- if (MEI_FILE_DISCONNECTED != cl->state)
- cl_err(dev, cl, "wrong status client disconnect.\n");
-
- if (err)
- cl_dbg(dev, cl, "wait failed disconnect err=%d\n", err);
-
- cl_err(dev, cl, "failed to disconnect from FW client.\n");
+ cl_dbg(dev, cl, "timeout on disconnect from FW client.\n");
+ rets = -ETIME;
}
mei_io_list_flush(&dev->ctrl_rd_list, cl);
Patches currently in stable-queue which might be from alexander.usyskin@xxxxxxxxx are
queue-3.16/mei-fix-return-value-on-disconnect-timeout.patch
queue-3.16/mei-start-disconnect-request-timer-consistently.patch
queue-3.16/mei-don-t-schedule-suspend-in-pm-idle.patch
queue-3.16/mei-reset-client-connection-state-on-timeout.patch
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