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authorLogan Gunthorpe <logang@deltatee.com>2017-03-17 12:48:11 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-03-21 06:44:32 +0100
commit358a89ca2c9680ceddc219ab25d1583619e9159f (patch)
treec080239726f49d6341d58163b7e2c5e2b6555b26 /drivers/input/joydev.c
parentdevice-dax: utilize new cdev_device_add helper function (diff)
downloadlinux-dev-358a89ca2c9680ceddc219ab25d1583619e9159f.tar.xz
linux-dev-358a89ca2c9680ceddc219ab25d1583619e9159f.zip
input: utilize new cdev_device_add helper function
Replace the open coded registration of the cdev and dev with the new device_add_cdev() helper in evdev, joydev and mousedev. The helper replaces a common pattern by taking the proper reference against the parent device and adding both the cdev and the device. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/input/joydev.c')
-rw-r--r--drivers/input/joydev.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 065e67bf56dd..29d677c714d2 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -742,8 +742,6 @@ static void joydev_cleanup(struct joydev *joydev)
joydev_mark_dead(joydev);
joydev_hangup(joydev);
- cdev_del(&joydev->cdev);
-
/* joydev is marked dead so no one else accesses joydev->open */
if (joydev->open)
input_close_device(handle);
@@ -913,12 +911,8 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
goto err_free_joydev;
cdev_init(&joydev->cdev, &joydev_fops);
- joydev->cdev.kobj.parent = &joydev->dev.kobj;
- error = cdev_add(&joydev->cdev, joydev->dev.devt, 1);
- if (error)
- goto err_unregister_handle;
- error = device_add(&joydev->dev);
+ error = cdev_device_add(&joydev->cdev, &joydev->dev);
if (error)
goto err_cleanup_joydev;
@@ -926,7 +920,6 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
err_cleanup_joydev:
joydev_cleanup(joydev);
- err_unregister_handle:
input_unregister_handle(&joydev->handle);
err_free_joydev:
put_device(&joydev->dev);
@@ -939,7 +932,7 @@ static void joydev_disconnect(struct input_handle *handle)
{
struct joydev *joydev = handle->private;
- device_del(&joydev->dev);
+ cdev_device_del(&joydev->cdev, &joydev->dev);
joydev_cleanup(joydev);
input_free_minor(MINOR(joydev->dev.devt));
input_unregister_handle(handle);