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libertas: use spin_is_locked() instead of spin_trylock() in lbs_interrupt()

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We get scary warnings on UP if we use spin_trylock() and find, as we
hoped, that the lock in question is already locked.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Woodhouse
2007-12-13 01:53:57 -05:00
committed by David S. Miller
parent 860621347e
commit f5a3ea6f96
1 changed files with 1 additions and 2 deletions
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3
drivers/net/wireless/libertas/main.c
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@@ -1414,8 +1414,7 @@ void lbs_interrupt(struct lbs_private *priv)
lbs_deb_thread("lbs_interrupt: intcounter=%d\n", priv->intcounter); lbs_deb_thread("lbs_interrupt: intcounter=%d\n", priv->intcounter);
if (spin_trylock(&priv->driver_lock)) { if (!spin_is_locked(&priv->driver_lock)) {
spin_unlock(&priv->driver_lock);
printk(KERN_CRIT "%s called without driver_lock held\n", __func__); printk(KERN_CRIT "%s called without driver_lock held\n", __func__);
WARN_ON(1); WARN_ON(1);
} }