A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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atm: nicstar: Replace spin_is_locked() with spin_trylock()

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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 <[email protected]>
Cc: Chas Williams <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Lance Roy 2018-10-04 00:46:57 -07:00 • committed by David S. Miller
commit 9a694c1de3
1 changed files with 1 additions and 2 deletions
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3
drivers/atm/nicstar.c
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@ -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);