Input: uinput - remove uinput_allocate_device()
authorDmitry Torokhov <dmitry.torokhov@gmail.com>
Wed, 6 Sep 2017 23:42:26 +0000 (16:42 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Mon, 23 Oct 2017 23:32:30 +0000 (16:32 -0700)
There is no need for this wrapper; let's use input_allocate_device()
directly, and complete initialization in uinput_create_device().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
drivers/input/misc/uinput.c

index 09549ed..06f3ac6 100644 (file)
@@ -324,6 +324,10 @@ static int uinput_create_device(struct uinput_device *udev)
                dev->flush = uinput_dev_flush;
        }
 
+       dev->event = uinput_dev_event;
+
+       input_set_drvdata(udev->dev, udev);
+
        error = input_register_device(udev->dev);
        if (error)
                goto fail2;
@@ -406,18 +410,6 @@ static int uinput_validate_absbits(struct input_dev *dev)
        return 0;
 }
 
-static int uinput_allocate_device(struct uinput_device *udev)
-{
-       udev->dev = input_allocate_device();
-       if (!udev->dev)
-               return -ENOMEM;
-
-       udev->dev->event = uinput_dev_event;
-       input_set_drvdata(udev->dev, udev);
-
-       return 0;
-}
-
 static int uinput_dev_setup(struct uinput_device *udev,
                            struct uinput_setup __user *arg)
 {
@@ -493,9 +485,9 @@ static int uinput_setup_device_legacy(struct uinput_device *udev,
                return -EINVAL;
 
        if (!udev->dev) {
-               retval = uinput_allocate_device(udev);
-               if (retval)
-                       return retval;
+               udev->dev = input_allocate_device();
+               if (!udev->dev)
+                       return -ENOMEM;
        }
 
        dev = udev->dev;
@@ -826,9 +818,9 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
                return retval;
 
        if (!udev->dev) {
-               retval = uinput_allocate_device(udev);
-               if (retval)
-                       goto out;
+               udev->dev = input_allocate_device();
+               if (!udev->dev)
+                       return -ENOMEM;
        }
 
        switch (cmd) {