| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.16 010/121] HID: nintendo: check the return value of alloc_workqueue() | Date | Mon, 14 Mar 2022 12:53:13 +0100 |
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From: Jia-Ju Bai <baijiaju1990@gmail.com>
[ Upstream commit fe23b6bbeac40de957724b90a88d46fb336e29a9 ]
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> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/hid/hid-nintendo.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c index b6a9a0f3966e..2204de889739 100644 --- a/drivers/hid/hid-nintendo.c +++ b/drivers/hid/hid-nintendo.c @@ -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); -- 2.34.1
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