mei: use internal watchdog device registration tracking

remove bool wd_interface_reg as watchdog device already
keeps track of its registration

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

diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 4a8eb92..8c3c268 100644 (file)
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -111,8 +111,6 @@ struct mei_device *mei_device_init(struct pci_dev *pdev)
        init_waitqueue_head(&dev->wait_stop_wd);
        dev->dev_state = MEI_DEV_INITIALIZING;
        dev->iamthif_state = MEI_IAMTHIF_IDLE;
-       dev->wd_interface_reg = false;
-
 
        mei_io_list_init(&dev->read_list);
        mei_io_list_init(&dev->write_list);

diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 57a5a4e..8b96d99 100644 (file)
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -249,7 +249,6 @@ struct mei_device {
 
        struct mei_cl wd_cl;
        enum mei_wd_states wd_state;
-       bool wd_interface_reg;
        bool wd_pending;
        u16 wd_timeout;
        unsigned char wd_data[MEI_WD_START_MSG_SIZE];

diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index 8edb054..4fc2b3d 100644 (file)
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -360,23 +360,20 @@ void mei_watchdog_register(struct mei_device *dev)
        if (watchdog_register_device(&amt_wd_dev)) {
                dev_err(&dev->pdev->dev,
                        "wd: unable to register watchdog device.\n");
-               dev->wd_interface_reg = false;
                return;
        }
 
        dev_dbg(&dev->pdev->dev,
                "wd: successfully register watchdog interface.\n");
-       dev->wd_interface_reg = true;
        watchdog_set_drvdata(&amt_wd_dev, dev);
 }
 
 void mei_watchdog_unregister(struct mei_device *dev)
 {
-       if (!dev->wd_interface_reg)
+       if (test_bit(WDOG_UNREGISTERED, &amt_wd_dev.status))
                return;
 
        watchdog_set_drvdata(&amt_wd_dev, NULL);
        watchdog_unregister_device(&amt_wd_dev);
-       dev->wd_interface_reg = false;
 }