V4L/DVB (13633): ir-core: create a new class for remote controllers

Add sysfs skeleton to export remote controller information via
/sys/class/irrcv.

For now, the code doesn't do much. It just exports an attribute that
is meant to  report and control the IR protocol used by the keytable.
However, the callbacks for this new attribute weren't set yet.

Also, it lacks symlinks to the used event interface.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 14 insertions, 3 deletions

diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c
index b521ed9d6e2e..8097561ec66f 100644
--- a/drivers/media/IR/ir-keytable.c
+++ b/drivers/media/IR/ir-keytable.c
@@ -447,12 +447,21 @@ int ir_input_register(struct input_dev *input_dev,
         input_set_drvdata(input_dev, ir_dev);
 
         rc = input_register_device(input_dev);
+        if (rc < 0)
+                goto err;
+
+        rc = ir_register_class(input_dev);
         if (rc < 0) {
-                kfree(rc_tab->scan);
-                kfree(ir_dev);
-                input_set_drvdata(input_dev, NULL);
+                input_unregister_device(input_dev);
+                goto err;
         }
 
+        return 0;
+
+err:
+        kfree(rc_tab->scan);
+        kfree(ir_dev);
+        input_set_drvdata(input_dev, NULL);
         return rc;
 }
 EXPORT_SYMBOL_GPL(ir_input_register);
@@ -472,6 +481,8 @@ void ir_input_unregister(struct input_dev *dev)
         kfree(rc_tab->scan);
         rc_tab->scan = NULL;
 
+        ir_unregister_class(dev);
+
         kfree(ir_dev);
         input_unregister_device(dev);
 }