Remove a compilation warning in brlock.c

[Peter Chubb]

Hi,
	Because the type of brlock_read_lock_t can vary depending on
whether SPINLOCK_DEBUG is defined, I suspect that the initialisation
of __brlock_array in lib/brlock.c is incorrect.

I suspect the initialisation in the __BRLOCK_USE_ATOMICS case whould
be to RW_LOCK_UNLOCKED, not zero.  Otherwise, nasty things will happen
-- and wakeups may be missed on i386 (the rwlock_t should be initialised to
-MAXINT-1 for i386, not zero, as the transition from negative->positive
is used to trigger wakeups.  Other architectures have other requirements)

--- /tmp/geta28567	Tue Apr 16 08:19:38 2002
+++ linux-2.5/lib/brlock.c	Tue Apr 16 08:16:22 2002
@@ -18,7 +18,7 @@
 #ifdef __BRLOCK_USE_ATOMICS
 
 brlock_read_lock_t __brlock_array[NR_CPUS][__BR_IDX_MAX] =
-   { [0 ... NR_CPUS-1] = { [0 ... __BR_IDX_MAX-1] = {0, 0} } };
+	{ [0 ... NR_CPUS-1] = { [0 ... __BR_IDX_MAX-1] = RW_LOCK_UNLOCKED } };
 
 void __br_write_lock (enum brlock_indices idx)
 {