From 9a694c1de396e24565bfd05d0e36f72d10c3bce2 Mon Sep 17 00:00:00 2001 From: Lance Roy Date: Thu, 4 Oct 2018 00:46:57 -0700 Subject: [PATCH] atm: nicstar: Replace spin_is_locked() with spin_trylock() ns_poll() used spin_is_locked() + spin_lock() to get achieve the same thing as a spin_trylock(), so simplify it by using that instead. This is also a step towards possibly removing spin_is_locked(). Signed-off-by: Lance Roy Cc: Chas Williams <3chas3@gmail.com> Cc: Cc: Signed-off-by: David S. Miller --- drivers/atm/nicstar.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c index cbec9adc01c7..ae4aa02e4dc6 100644 --- a/drivers/atm/nicstar.c +++ b/drivers/atm/nicstar.c @@ -2689,11 +2689,10 @@ static void ns_poll(struct timer_list *unused) PRINTK("nicstar: Entering ns_poll().\n"); for (i = 0; i < num_cards; i++) { card = cards[i]; - if (spin_is_locked(&card->int_lock)) { + if (!spin_trylock_irqsave(&card->int_lock, flags)) { /* Probably it isn't worth spinning */ continue; } - spin_lock_irqsave(&card->int_lock, flags); stat_w = 0; stat_r = readl(card->membase + STAT); -- 2.30.2