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From:   Zhouyang Jia <jiazhouyang09@gmail.com>
Cc:     Zhouyang Jia <jiazhouyang09@gmail.com>,
        Jiri Kosina <jikos@kernel.org>,
        Benjamin Tissoires <benjamin.tissoires@redhat.com>,
        linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2] HID: hid-ntrig: add error handling for sysfs_create_group
Date:   Thu, 14 Jun 2018 21:37:17 +0800
Message-Id: <1528983437-52903-1-git-send-email-jiazhouyang09@gmail.com>
In-Reply-To: <1528707296-35785-1-git-send-email-jiazhouyang09@gmail.com>
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When sysfs_create_group fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling sysfs_create_group.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
---
v1->v2:
- Remove goto statement.
---
 drivers/hid/hid-ntrig.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index 43b1c72..9bc6f48 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -955,6 +955,8 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	ret = sysfs_create_group(&hdev->dev.kobj,
 			&ntrig_attribute_group);
+	if (ret)
+		hid_err(hdev, "cannot create sysfs group\n");
 
 	return 0;
 err_free:
-- 
2.7.4