This is a note to let you know that I've just added the patch titled
mei: me: fix waiting for hw ready
to the 3.10-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-me-fix-waiting-for-hw-ready.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From dab9bf41b23fe700c4a74133e41eb6a21706031e Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Date: Wed, 17 Jul 2013 15:13:17 +0300
Subject: mei: me: fix waiting for hw ready
From: Tomas Winkler <tomas.winkler@xxxxxxxxx>
commit dab9bf41b23fe700c4a74133e41eb6a21706031e upstream.
1. MEI_INTEROP_TIMEOUT is in seconds not in jiffies
so we use mei_secs_to_jiffies macro
While cold boot is fast this is relevant in resume
2. wait_event_interruptible_timeout can return with
-ERESTARTSYS so do not override it with -ETIMEDOUT
3.Adjust error message
Tested-by: Shuah Khan <shuah.kh@xxxxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/misc/mei/hw-me.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -238,14 +238,18 @@ static int mei_me_hw_ready_wait(struct m
if (mei_me_hw_is_ready(dev))
return 0;
+ dev->recvd_hw_ready = false;
mutex_unlock(&dev->device_lock);
err = wait_event_interruptible_timeout(dev->wait_hw_ready,
- dev->recvd_hw_ready, MEI_INTEROP_TIMEOUT);
+ dev->recvd_hw_ready,
+ mei_secs_to_jiffies(MEI_INTEROP_TIMEOUT));
mutex_lock(&dev->device_lock);
if (!err && !dev->recvd_hw_ready) {
+ if (!err)
+ err = -ETIMEDOUT;
dev_err(&dev->pdev->dev,
- "wait hw ready failed. status = 0x%x\n", err);
- return -ETIMEDOUT;
+ "wait hw ready failed. status = %d\n", err);
+ return err;
}
dev->recvd_hw_ready = false;
Patches currently in stable-queue which might be from tomas.winkler@xxxxxxxxx are
queue-3.10/mei-me-fix-waiting-for-hw-ready.patch
queue-3.10/mei-me-fix-reset-state-machine.patch
queue-3.10/mei-don-t-have-to-clean-the-state-on-power-up.patch
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