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-rw-r--r--drivers/misc/mei/bus.c66
-rw-r--r--drivers/misc/mei/client.c5
-rw-r--r--drivers/misc/mei/mei_dev.h2
3 files changed, 34 insertions, 39 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 772d02922529..1dacc820bd7f 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -450,6 +450,29 @@ bool mei_cldev_enabled(struct mei_cl_device *cldev)
EXPORT_SYMBOL_GPL(mei_cldev_enabled);
/**
+ * mei_cl_bus_module_get - acquire module of the underlying
+ * hw driver.
+ *
+ * @cldev: mei client device
+ *
+ * Return: true on success; false if the module was removed.
+ */
+static bool mei_cl_bus_module_get(struct mei_cl_device *cldev)
+{
+ return try_module_get(cldev->bus->dev->driver->owner);
+}
+
+/**
+ * mei_cl_bus_module_put - release the underlying hw module.
+ *
+ * @cldev: mei client device
+ */
+static void mei_cl_bus_module_put(struct mei_cl_device *cldev)
+{
+ module_put(cldev->bus->dev->driver->owner);
+}
+
+/**
* mei_cldev_enable - enable me client device
* create connection with me client
*
@@ -487,9 +510,17 @@ int mei_cldev_enable(struct mei_cl_device *cldev)
goto out;
}
+ if (!mei_cl_bus_module_get(cldev)) {
+ dev_err(&cldev->dev, "get hw module failed");
+ ret = -ENODEV;
+ goto out;
+ }
+
ret = mei_cl_connect(cl, cldev->me_cl, NULL);
- if (ret < 0)
+ if (ret < 0) {
dev_err(&cldev->dev, "cannot connect\n");
+ mei_cl_bus_module_put(cldev);
+ }
out:
mutex_unlock(&bus->device_lock);
@@ -553,6 +584,8 @@ int mei_cldev_disable(struct mei_cl_device *cldev)
dev_err(bus->dev, "Could not disconnect from the ME client\n");
out:
+ mei_cl_bus_module_put(cldev);
+
/* Flush queues and remove any pending read */
mei_cl_flush_queues(cl, NULL);
mei_cl_unlink(cl);
@@ -563,37 +596,6 @@ out:
EXPORT_SYMBOL_GPL(mei_cldev_disable);
/**
- * mei_cl_bus_module_get - acquire module of the underlying
- * hw module.
- *
- * @cl: host client
- *
- * Return: true on success; false if the module was removed.
- */
-bool mei_cl_bus_module_get(struct mei_cl *cl)
-{
- struct mei_cl_device *cldev = cl->cldev;
-
- if (!cldev)
- return true;
-
- return try_module_get(cldev->bus->dev->driver->owner);
-}
-
-/**
- * mei_cl_bus_module_put - release the underlying hw module.
- *
- * @cl: host client
- */
-void mei_cl_bus_module_put(struct mei_cl *cl)
-{
- struct mei_cl_device *cldev = cl->cldev;
-
- if (cldev)
- module_put(cldev->bus->dev->driver->owner);
-}
-
-/**
* mei_cl_device_find - find matching entry in the driver id table
*
* @cldev: me client device
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 7e60c1817c31..bdfb4ecf848a 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -765,8 +765,6 @@ static void mei_cl_set_disconnected(struct mei_cl *cl)
cl->tx_flow_ctrl_creds = 0;
cl->timer_count = 0;
- mei_cl_bus_module_put(cl);
-
if (!cl->me_cl)
return;
@@ -1076,9 +1074,6 @@ int mei_cl_connect(struct mei_cl *cl, struct mei_me_client *me_cl,
dev = cl->dev;
- if (!mei_cl_bus_module_get(cl))
- return -ENODEV;
-
rets = mei_cl_set_connecting(cl, me_cl);
if (rets)
goto nortpm;
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index ebcd5132e447..c08111441164 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -315,8 +315,6 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length,
bool mei_cl_bus_rx_event(struct mei_cl *cl);
bool mei_cl_bus_notify_event(struct mei_cl *cl);
void mei_cl_bus_remove_devices(struct mei_device *bus);
-bool mei_cl_bus_module_get(struct mei_cl *cl);
-void mei_cl_bus_module_put(struct mei_cl *cl);
int mei_cl_bus_init(void);
void mei_cl_bus_exit(void);