[PATCH 5/7] drivers/staging/comedi: Use DEFINE_SPINLOCK

From: Julia Lawall
Date: Thu Dec 25 2008 - 09:35:01 EST


From: Julia Lawall <julia@xxxxxxx>

SPIN_LOCK_UNLOCKED is deprecated. The following makes the change suggested
in Documentation/spinlocks.txt

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
declarer name DEFINE_SPINLOCK;
identifier xxx_lock;
@@

- spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED;
+ DEFINE_SPINLOCK(xxx_lock);
// </smpl>

Signed-off-by: Julia Lawall <julia@xxxxxxx>

---
diff -u -p a/drivers/staging/comedi/rt_pend_tq.c b/drivers/staging/comedi/rt_pend_tq.c
--- a/drivers/staging/comedi/rt_pend_tq.c
+++ b/drivers/staging/comedi/rt_pend_tq.c
@@ -25,7 +25,7 @@ volatile static struct rt_pend_tq rt_pen
volatile static struct rt_pend_tq *volatile rt_pend_head = rt_pend_tq,
*volatile rt_pend_tail = rt_pend_tq;
int rt_pend_tq_irq = 0;
-spinlock_t rt_pend_tq_lock = SPIN_LOCK_UNLOCKED;
+DEFINE_SPINLOCK(rt_pend_tq_lock);

// WARNING: following code not checked against race conditions yet.
#define INC_CIRCULAR_PTR(ptr,begin,size) do {if(++(ptr)>=(begin)+(size)) (ptr)=(begin); } while(0)
--
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