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Subject[PATCH] HID: hid-ntrig: add error handling for sysfs_create_group
Date
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>
---
drivers/hid/hid-ntrig.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index 43b1c72..1e70dae 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -955,6 +955,10 @@ 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");
+ goto err_free;
+ }

return 0;
err_free:
--
2.7.4
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