Commit 7b7c5ae4 authored by Yu Kuai's avatar Yu Kuai Committed by Jens Axboe
Browse files

blk-iocost: check return value of match_u64() 



This patch fixs that the return value of match_u64() from ioc_qos_write()
is not checked,

Signed-off-by: default avatarYu Kuai <yukuai3@huawei.com>
Acked-by: default avatarTejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20230117070806.3857142-2-yukuai1@huaweicloud.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 5f2779df

block/blk-iocost.c

+2 −1
Original line number Diff line number Diff line
@@ -3214,7 +3214,8 @@ static ssize_t ioc_qos_write(struct kernfs_open_file *of, char *input, 


		switch (match_token(p, qos_ctrl_tokens, args)) {

		case QOS_ENABLE:

			match_u64(&args[0], &v);

			if (match_u64(&args[0], &v))

				goto einval;

			enable = v;

			continue;

		case QOS_CTRL: