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HID: nintendo: check the return value of alloc_workqueue()

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The function alloc_workqueue() in nintendo_hid_probe() can fail, but
there is no check of its return value. To fix this bug, its return value
should be checked with new error handling code.

Fixes: c4eae84feff3e ("HID: nintendo: add rumble support")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Silvan Jegen <s.jegen@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Jia-Ju Bai 2022-02-24 19:41:10 -08:00 committed by Jiri Kosina
parent cc71d37fd1
commit fe23b6bbea
1 changed files with 4 additions and 0 deletions
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4
drivers/hid/hid-nintendo.c
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@ -2128,6 +2128,10 @@ static int nintendo_hid_probe(struct hid_device *hdev,
spin_lock_init(&ctlr->lock);
ctlr->rumble_queue = alloc_workqueue("hid-nintendo-rumble_wq",
WQ_FREEZABLE | WQ_MEM_RECLAIM, 0);
if (!ctlr->rumble_queue) {
ret = -ENOMEM;
goto err;
}
INIT_WORK(&ctlr->rumble_worker, joycon_rumble_worker);
ret = hid_parse(hdev);