HID: make Wacom modesetting failures non-fatal
With Wacom tablet mode-setting moved from userspace into kernel,
we don't have to consider failures of device queries through the
_raw callback as hard failure, as the driver can safely continue
anyway.
This is consistent with the current USB driver in wacom_sys.c
Reported-by: Ping Cheng <pinglinux@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index b8778db..8d3b46f 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -181,6 +181,11 @@
goto err_free;
}
+ /*
+ * Note that if the raw queries fail, it's not a hard failure and it
+ * is safe to continue
+ */
+
/* Set Wacom mode2 */
rep_data[0] = 0x03; rep_data[1] = 0x00;
limit = 3;
@@ -188,10 +193,8 @@
ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
HID_FEATURE_REPORT);
} while (ret < 0 && limit-- > 0);
- if (ret < 0) {
- dev_err(&hdev->dev, "failed to poke device #1, %d\n", ret);
- goto err_free;
- }
+ if (ret < 0)
+ dev_warn(&hdev->dev, "failed to poke device #1, %d\n", ret);
/* 0x06 - high reporting speed, 0x05 - low speed */
rep_data[0] = 0x06; rep_data[1] = 0x00;
@@ -200,10 +203,8 @@
ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
HID_FEATURE_REPORT);
} while (ret < 0 && limit-- > 0);
- if (ret < 0) {
- dev_err(&hdev->dev, "failed to poke device #2, %d\n", ret);
- goto err_free;
- }
+ if (ret < 0)
+ dev_warn(&hdev->dev, "failed to poke device #2, %d\n", ret);
hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
input = hidinput->input;
