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s390/cio: use DEFINE_SPINLOCK() for spinlock 

static spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

Signed-off-by: Shixin Liu <liushixin2@huawei.com>
Acked-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Shixin Liu 2021-03-29 17:40:18 +08:00 committed by Heiko Carstens
parent 408f2c9c15
commit 1034c96c5e
1 changed files with 1 additions and 2 deletions
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3
drivers/s390/cio/css.c
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@ -651,13 +651,12 @@ static void css_sch_todo(struct work_struct *work)
}
static struct idset *slow_subchannel_set;
static spinlock_t slow_subchannel_lock;
static DEFINE_SPINLOCK(slow_subchannel_lock);
static wait_queue_head_t css_eval_wq;
static atomic_t css_eval_scheduled;
static int __init slow_subchannel_init(void)
{
spin_lock_init(&slow_subchannel_lock);
atomic_set(&css_eval_scheduled, 0);
init_waitqueue_head(&css_eval_wq);
slow_subchannel_set = idset_sch_new();