diff options
| -rw-r--r-- | block/blk-mq-debugfs.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index 2a19237455d4..109ae9f3d400 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -111,17 +111,16 @@ static ssize_t blk_queue_flags_store(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { struct request_queue *q = file_inode(file)->i_private; - char op[16] = { }, *s; + char opbuf[16] = { }, *op; - if (count >= sizeof(op)) { + if (count >= sizeof(opbuf)) { pr_err("%s: operation too long\n", __func__); goto inval; } - if (copy_from_user(op, buf, count)) + if (copy_from_user(opbuf, buf, count)) return -EFAULT; - s = op; - strsep(&s, " \t\n"); /* strip trailing whitespace */ + op = strstrip(opbuf); if (strcmp(op, "run") == 0) { blk_mq_run_hw_queues(q, true); } else if (strcmp(op, "start") == 0) { |