mei: hbm: revamp client connect and disconnection status

1. Return -ENOTTY on client connect if the requested client was not found
 on the enumeration list or the client was internally disabled, in the later
 case FW will return NOT_FOUND.
2. Return -EBUSY if the client cannot be connected because of resource
 contention
3. Change response status enum to have MEI_CL_ prefix
4. Add function to translate response status to a string
for more readable logging

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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 5424f8ff3f7f..434242bada89 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -471,7 +471,7 @@ static int mei_ioctl_connect_client(struct file *file,
         if (i < 0 || dev->me_clients[i].props.fixed_address) {
                 dev_dbg(&dev->pdev->dev, "Cannot connect to FW Client UUID = %pUl\n",
                                 &data->in_client_uuid);
-                rets = -ENODEV;
+                rets = -ENOTTY;
                 goto end;
         }