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Subject[PATCH 2/2] HID: wacom: do not call hid_set_drvdata(hdev, NULL)
Date
This is a common pattern in the HID drivers to reset the drvdata.
However, this is actually already handled by driver core, so there
is no need to do it manually.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
drivers/hid/wacom_sys.c | 18 +++++-------------
1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 53bddb50aeba..69ccfdd51a6f 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -2718,14 +2718,12 @@ static int wacom_probe(struct hid_device *hdev,
wacom_wac->features = *((struct wacom_features *)id->driver_data);
features = &wacom_wac->features;

- if (features->check_for_hid_type && features->hid_type != hdev->type) {
- error = -ENODEV;
- goto fail;
- }
+ if (features->check_for_hid_type && features->hid_type != hdev->type)
+ return -ENODEV;

error = kfifo_alloc(&wacom_wac->pen_fifo, WACOM_PKGLEN_MAX, GFP_KERNEL);
if (error)
- goto fail;
+ return error;

wacom_wac->hid_data.inputmode = -1;
wacom_wac->mode_report = -1;
@@ -2743,12 +2741,12 @@ static int wacom_probe(struct hid_device *hdev,
error = hid_parse(hdev);
if (error) {
hid_err(hdev, "parse failed\n");
- goto fail;
+ return error;
}

error = wacom_parse_and_register(wacom, false);
if (error)
- goto fail;
+ return error;

if (hdev->bus == BUS_BLUETOOTH) {
error = device_create_file(&hdev->dev, &dev_attr_speed);
@@ -2759,10 +2757,6 @@ static int wacom_probe(struct hid_device *hdev,
}

return 0;
-
-fail:
- hid_set_drvdata(hdev, NULL);
- return error;
}

static void wacom_remove(struct hid_device *hdev)
@@ -2791,8 +2785,6 @@ static void wacom_remove(struct hid_device *hdev)
wacom_release_resources(wacom);

kfifo_free(&wacom_wac->pen_fifo);
-
- hid_set_drvdata(hdev, NULL);
}

#ifdef CONFIG_PM
--
2.19.2
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