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Subject[PATCH] HID: lenovo: Remove sysfs group on failure path
Date
There is no sysfs_group_remove() on failure path in lenovo_probe_tpkbd().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
---
drivers/hid/hid-lenovo.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c
index c4c3f0952521..64ed3e3f227a 100644
--- a/drivers/hid/hid-lenovo.c
+++ b/drivers/hid/hid-lenovo.c
@@ -599,7 +599,8 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev)
GFP_KERNEL);
if (data_pointer == NULL) {
hid_err(hdev, "Could not allocate memory for driver data\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto err;
}

// set same default values as windows driver
@@ -610,7 +611,8 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev)
name_micmute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
if (name_mute == NULL || name_micmute == NULL) {
hid_err(hdev, "Could not allocate memory for led data\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto err;
}
snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(dev));
snprintf(name_micmute, name_sz, "%s:amber:micmute", dev_name(dev));
@@ -634,6 +636,9 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev)
lenovo_features_set_tpkbd(hdev);

return 0;
+err:
+ sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
+ return ret;
}

static int lenovo_probe_cptkbd(struct hid_device *hdev)
--
1.9.1


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