mei: me: fix waiting for hw ready

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@samsung.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 0310859..700fe55 100644 (file)
--- 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 mei_device *dev)
        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;