From f680474345f1fd6329d1806d6358066fd3b07f02 Mon Sep 17 00:00:00 2001 From: weiping zhang Date: Thu, 23 Nov 2017 21:39:40 +0800 Subject: blk-sysfs: remove NULL pointer checking in queue_wb_lat_store wbt_init doesn't set q->rq_wb to NULL, if wbt_init return 0, so check return value is enough, remove NULL checking. Signed-off-by: weiping zhang Signed-off-by: Jens Axboe --- block/blk-sysfs.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'block') diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index e54be402899d..870484eaed1f 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -450,12 +450,9 @@ static ssize_t queue_wb_lat_store(struct request_queue *q, const char *page, ret = wbt_init(q); if (ret) return ret; - - rwb = q->rq_wb; - if (!rwb) - return -EINVAL; } + rwb = q->rq_wb; if (val == -1) rwb->min_lat_nsec = wbt_default_latency_nsec(q); else if (val >= 0) -- cgit v1.2.3