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Subject[char-misc 2/3] mei: me: drop harmful wait optimization
Date
It my take time till ME_RDY will be cleared after the reset,
so we cannot check the bit before we got the interrupt

Cc: stable@vger.kernel.org
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
---
drivers/misc/mei/hw-me.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index ac76a63..031efcf 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -203,6 +203,7 @@ static int mei_me_hw_reset(struct mei_device *dev, bool intr_enable)
else
hcsr &= ~H_IE;

+ dev->recvd_hw_ready = false;
mei_me_reg_write(hw, H_CSR, hcsr);

if (intr_enable == false)
@@ -254,10 +255,7 @@ static bool mei_me_hw_is_ready(struct mei_device *dev)
static int mei_me_hw_ready_wait(struct mei_device *dev)
{
int err;
- 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,
--
1.9.0


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