This fixes the broken #ifdefs on CONFIG_RMI4_DEBUG.  Per device debugfs
setup is reordered to ensure that the debugfs tree for a given device is
created before it is registered (since the action of registering a device
may cause other things to happen that depend on debugfs being initialized
already).

Signed-off-by: Christopher Heiny <[email protected]>
Cc: Dmitry Torokhov <[email protected]>
Cc: Jean Delvare <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: Joerie de Gram <[email protected]>
Cc: Benjamin Tissoires <[email protected]>

---

This patch implements changes to the synaptics-rmi4 branch of
Dmitry's input tree.  The base for the patch is commit
f154022b208a59b048f52b7b5d58a5ec1949b96e.

 drivers/input/rmi4/rmi_bus.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c
index cb14cf6..173f6be 100644
--- a/drivers/input/rmi4/rmi_bus.c
+++ b/drivers/input/rmi4/rmi_bus.c
@@ -47,7 +47,7 @@ bool rmi_is_physical_device(struct device *dev)
        return dev->type == &rmi_device_type;
 }
 
-#if CONFIG_RMI4_DEBUG
+#ifdef CONFIG_RMI4_DEBUG
 
 static void rmi_physical_setup_debugfs(struct rmi_device *rmi_dev)
 {
@@ -109,12 +109,12 @@ int rmi_register_physical_device(struct rmi_phys_device 
*phys)
 
        phys->rmi_dev = rmi_dev;
 
+       rmi_physical_setup_debugfs(rmi_dev);
+
        error = device_register(&rmi_dev->dev);
        if (error)
                return error;
 
-       rmi_physical_setup_debugfs(rmi_dev);
-
        dev_dbg(phys->dev, "%s: Registered %s as %s.\n", __func__,
                pdata->sensor_name, dev_name(&rmi_dev->dev));
 
@@ -155,7 +155,7 @@ bool rmi_is_function_device(struct device *dev)
        return dev->type == &rmi_function_type;
 }
 
-#if CONFIG_RMI4_DEBUG
+#ifdef CONFIG_RMI4_DEBUG
 
 static void rmi_function_setup_debugfs(struct rmi_function *fn)
 {
@@ -233,18 +233,23 @@ int rmi_register_function(struct rmi_function *fn)
        fn->dev.type = &rmi_function_type;
        fn->dev.bus = &rmi_bus_type;
 
+       rmi_function_setup_debugfs(fn);
+
        error = device_register(&fn->dev);
        if (error) {
                dev_err(&rmi_dev->dev,
                        "Failed device_register function device %s\n",
                        dev_name(&fn->dev));
-               return error;
+               goto error_exit;
        }
 
        dev_dbg(&rmi_dev->dev, "Registered F%02X.\n", fn->fd.function_number);
 
-       rmi_function_setup_debugfs(fn);
        return 0;
+
+error_exit:
+       rmi_function_teardown_debugfs(fn);
+       return error;
 }
 
 void rmi_unregister_function(struct rmi_function *fn)
@@ -357,6 +362,8 @@ static int __init rmi_bus_init(void)
                return error;
        }
 
+       rmi_bus_setup_debugfs();
+
        error = rmi_register_f01_handler();
        if (error) {
                pr_err("%s: error registering the RMI F01 handler: %d\n",
@@ -371,13 +378,12 @@ static int __init rmi_bus_init(void)
                goto err_unregister_f01;
        }
 
-       rmi_bus_setup_debugfs();
-
        return 0;
 
 err_unregister_f01:
        rmi_unregister_f01_handler();
 err_unregister_bus:
+       rmi_bus_teardown_debugfs();
        bus_unregister(&rmi_bus_type);
        return error;
 }
@@ -390,9 +396,9 @@ static void __exit rmi_bus_exit(void)
         * all we have to do at this point is unregister ourselves.
         */
 
-       rmi_bus_teardown_debugfs();
        rmi_unregister_physical_driver();
        rmi_unregister_f01_handler();
+       rmi_bus_teardown_debugfs();
        bus_unregister(&rmi_bus_type);
 }
 module_exit(rmi_bus_exit);
--
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