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HID: wacom: rework fail path in probe() and parse_and_register()

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Thanks to devres management, we don't need to remember a lot of failure
path. One or two is enough.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2016-07-13 18:06:03 +02:00 committed by Jiri Kosina
parent 83e6b40e2d
commit 3888b0d53d
1 changed files with 14 additions and 23 deletions
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37
drivers/hid/wacom_sys.c
View file

@ -1713,7 +1713,7 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
error = wacom_allocate_inputs(wacom);
if (error)
goto fail_open_group;
goto fail;
/*
* Bamboo Pad has a generic hid handling for the Pen, and we switch it
@ -1726,7 +1726,7 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
} else if ((features->pktlen != WACOM_PKGLEN_BPAD_TOUCH) &&
(features->pktlen != WACOM_PKGLEN_BPAD_TOUCH_USB)) {
error = -ENODEV;
goto fail_allocate_inputs;
goto fail;
}
}
@ -1746,7 +1746,7 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
error ? "Ignoring" : "Assuming pen");
if (error)
goto fail_parsed;
goto fail;
features->device_type |= WACOM_DEVICETYPE_PEN;
}
@ -1757,27 +1757,27 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
error = wacom_add_shared_data(hdev);
if (error)
goto fail_shared_data;
goto fail;
if (!(features->device_type & WACOM_DEVICETYPE_WL_MONITOR) &&
(features->quirks & WACOM_QUIRK_BATTERY)) {
error = wacom_initialize_battery(wacom);
if (error)
goto fail_battery;
goto fail;
}
error = wacom_register_inputs(wacom);
if (error)
goto fail_register_inputs;
goto fail;
if (wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD) {
error = wacom_initialize_leds(wacom);
if (error)
goto fail_leds;
goto fail;
error = wacom_initialize_remotes(wacom);
if (error)
goto fail_remote;
goto fail;
}
if (features->type == HID_GENERIC)
@ -1787,7 +1787,7 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
error = hid_hw_start(hdev, connect_mask);
if (error) {
hid_err(hdev, "hw start failed\n");
goto fail_hw_start;
goto fail;
}
if (!wireless) {
@ -1826,15 +1826,7 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
fail_quirks:
hid_hw_stop(hdev);
fail_hw_start:
fail_remote:
fail_leds:
fail_register_inputs:
fail_battery:
fail_shared_data:
fail_parsed:
fail_allocate_inputs:
fail_open_group:
fail:
wacom_release_resources(wacom);
return error;
}
@ -2014,7 +2006,7 @@ static int wacom_probe(struct hid_device *hdev,
if (features->check_for_hid_type && features->hid_type != hdev->type) {
error = -ENODEV;
goto fail_type;
goto fail;
}
wacom_wac->hid_data.inputmode = -1;
@ -2031,12 +2023,12 @@ static int wacom_probe(struct hid_device *hdev,
error = hid_parse(hdev);
if (error) {
hid_err(hdev, "parse failed\n");
goto fail_parse;
goto fail;
}
error = wacom_parse_and_register(wacom, false);
if (error)
goto fail_parse;
goto fail;
if (hdev->bus == BUS_BLUETOOTH) {
error = device_create_file(&hdev->dev, &dev_attr_speed);
@ -2048,8 +2040,7 @@ static int wacom_probe(struct hid_device *hdev,
return 0;
fail_parse:
fail_type:
fail:
hid_set_drvdata(hdev, NULL);
return error;
}