From: Tomas Winkler Date: Mon, 12 May 2014 09:19:40 +0000 (+0300) Subject: mei: me: drop harmful wait optimization X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=07cd7be3d92eeeae1f92a017f2cfe4fdd9256526;p=linux-beck.git mei: me: drop harmful wait optimization 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 Signed-off-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index ac76a6377794..031efcfed39e 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,