[PATCH 3/3] HID: sony: Don't use fw_version/hw_version for sysfs cleanup.
From: Roderick Colenbrander <hidden>
Date: 2020-11-10 07:22:39
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
From: Roderick Colenbrander <roderick.colenbrander@sony.com> The DS4 dongle reports fw_version and hw_version as 0 when no actual DS4 is connected to it. This prevents cleaning up sysfs nodes upon device remove. This patch decouples sysfs cleanup from the fw_version and hw_version values by introducing boolean values. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> --- drivers/hid/hid-sony.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 83a94ddbfa4e..124ed4806c78 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c@@ -550,7 +550,9 @@ struct sony_sc { struct power_supply_desc battery_desc; int device_id; unsigned fw_version; + bool fw_version_created; unsigned hw_version; + bool hw_version_created; u8 *output_report_dmabuf; #ifdef CONFIG_SONY_FF
@@ -2760,19 +2762,17 @@ static int sony_input_configured(struct hid_device *hdev, ret = device_create_file(&sc->hdev->dev, &dev_attr_firmware_version); if (ret) { - /* Make zero for cleanup reasons of sysfs entries. */ - sc->fw_version = 0; - sc->hw_version = 0; hid_err(sc->hdev, "can't create sysfs firmware_version attribute err: %d\n", ret); goto err_stop; } + sc->fw_version_created = true; ret = device_create_file(&sc->hdev->dev, &dev_attr_hardware_version); if (ret) { - sc->hw_version = 0; hid_err(sc->hdev, "can't create sysfs hardware_version attribute err: %d\n", ret); goto err_stop; } + sc->hw_version_created = true; /* * The Dualshock 4 touchpad supports 2 touches and has a
@@ -2864,9 +2864,9 @@ static int sony_input_configured(struct hid_device *hdev, */ if (sc->ds4_bt_poll_interval) device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval); - if (sc->fw_version) + if (sc->fw_version_created) device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version); - if (sc->hw_version) + if (sc->hw_version_created) device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version); sony_cancel_work_sync(sc); sony_remove_dev_list(sc);
@@ -2951,10 +2951,10 @@ static void sony_remove(struct hid_device *hdev) if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval); - if (sc->fw_version) + if (sc->fw_version_created) device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version); - if (sc->hw_version) + if (sc->hw_version_created) device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version); sony_cancel_work_sync(sc);
--
2.26.2