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mei: me: release hw from reset only during the reset flow

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We might enter the interrupt handler with hw_ready already set,
but prior we actually started the reset flow.
To soleve this we move the reset release from the interrupt handler
to the HW start wait function which is part of the reset sequence.

Cc: <stable@vger.kernel.org> #3.10+
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Usyskin 2015-01-25 23:45:28 +02:00 committed by Greg Kroah-Hartman
parent 1ab1e79b9f
commit 663b7ee951
1 changed files with 1 additions and 2 deletions
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3
drivers/misc/mei/hw-me.c
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@ -335,6 +335,7 @@ static int mei_me_hw_ready_wait(struct mei_device *dev)
return -ETIME;
}
mei_me_hw_reset_release(dev);
dev->recvd_hw_ready = false;
return 0;
}
@ -731,9 +732,7 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id)
/* check if we need to start the dev */
if (!mei_host_is_ready(dev)) {
if (mei_hw_is_ready(dev)) {
mei_me_hw_reset_release(dev);
dev_dbg(dev->dev, "we need to start the dev.\n");
dev->recvd_hw_ready = true;
wake_up(&dev->wait_hw_ready);
} else {