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>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 03108591c139..700fe55095ba 100644
--- 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;