All of lore.kernel.org
 help / color / mirror / Atom feed
From: Axel Lin <axel.lin@gmail.com>
To: Jiri Kosina <jkosina@suse.cz>
Cc: Przemo Firszt <przemo@firszt.eu>, Ping Cheng <pingc@wacom.com>,
	linux-input@vger.kernel.org
Subject: [PATCH v2] HID: wacom: Fix wacom_probe error handling
Date: Mon, 17 Sep 2012 16:53:54 +0800	[thread overview]
Message-ID: <1347872034.7737.4.camel@phoenix> (raw)

OLEDs/LED are not critical for tablet functioning thus ignore OLED/LED
initialisation failures.

This patch does clean up all the sysfs attribute files in error paths.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
 drivers/hid/hid-wacom.c |   23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index a0fafac..2f60da9 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -858,11 +858,9 @@ OLED_INIT(7);
 	if (hdev->product == USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) {
 		sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
 		ret = wacom_initialize_leds(hdev);
-		if (ret) {
+		if (ret)
 			hid_warn(hdev,
 				 "can't create led attribute, err: %d\n", ret);
-			goto destroy_leds;
-		}
 	}
 
 	wdata->battery.properties = wacom_battery_props;
@@ -875,8 +873,8 @@ OLED_INIT(7);
 
 	ret = power_supply_register(&hdev->dev, &wdata->battery);
 	if (ret) {
-		hid_warn(hdev, "can't create sysfs battery attribute, err: %d\n",
-			 ret);
+		hid_err(hdev, "can't create sysfs battery attribute, err: %d\n",
+			ret);
 		goto err_battery;
 	}
 
@@ -891,8 +889,8 @@ OLED_INIT(7);
 
 	ret = power_supply_register(&hdev->dev, &wdata->ac);
 	if (ret) {
-		hid_warn(hdev,
-			 "can't create ac battery attribute, err: %d\n", ret);
+		hid_err(hdev,
+			"can't create ac battery attribute, err: %d\n", ret);
 		goto err_ac;
 	}
 
@@ -902,10 +900,17 @@ OLED_INIT(7);
 err_ac:
 	power_supply_unregister(&wdata->battery);
 err_battery:
+	wacom_destroy_leds(hdev);
+	device_remove_file(&hdev->dev, &dev_attr_oled0_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled1_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled2_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled3_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled4_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled5_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled6_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled7_img);
 	device_remove_file(&hdev->dev, &dev_attr_speed);
 	hid_hw_stop(hdev);
-destroy_leds:
-	wacom_destroy_leds(hdev);
 err_free:
 	kfree(wdata);
 	return ret;
-- 
1.7.9.5




             reply	other threads:[~2012-09-17  8:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-17  8:53 Axel Lin [this message]
2012-09-17 20:17 ` [PATCH v2] HID: wacom: Fix wacom_probe error handling Ping Cheng
2012-09-18 22:09 ` Przemo Firszt
2012-09-19 11:42   ` Jiri Kosina

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1347872034.7737.4.camel@phoenix \
    --to=axel.lin@gmail.com \
    --cc=jkosina@suse.cz \
    --cc=linux-input@vger.kernel.org \
    --cc=pingc@wacom.com \
    --cc=przemo@firszt.eu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.