Hello Jens Axboe,
This is a semi-automatic email about new static checker warnings.
The patch bd166ef183c2: "blk-mq-sched: add framework for MQ capable
IO schedulers" from Jan 17, 2017, leads to the following Smatch
complaint:
block/elevator.c:234 elevator_init()
error: we previously assumed 'e' could be null (see line 229)
block/elevator.c
228
229 if (!e) {
^^
Null.
230 printk(KERN_ERR
231 "Default I/O scheduler not found. " \
232 "Using noop/none.\n");
233 if (q->mq_ops) {
234 elevator_put(e);
^^^^^^^^^^^^^^^
This will Oops.
235 return 0;
236 }
regards,
dan carpenter
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