Don't grab the ICU lock while reading the current pending interrupts and

current masked interrupts from the AT PIC.

Requested by:	bde

1 files changed, 0 insertions, 4 deletions

diff --git a/sys/alpha/isa/isa.c b/sys/alpha/isa/isa.c
index 00c0ee9..d6ddebc 100644
--- a/sys/alpha/isa/isa.c
+++ b/sys/alpha/isa/isa.c
@@ -77,10 +77,8 @@ isa_irq_pending(void)
 	u_char irr1;
 	u_char irr2;
 
-	mtx_lock_spin(&icu_lock);
 	irr1 = inb(IO_ICU1);
 	irr2 = inb(IO_ICU2);
-	mtx_unlock_spin(&icu_lock);
 	return ((irr2 << 8) | irr1);
 }
 
@@ -90,10 +88,8 @@ isa_irq_mask(void)
 	u_char irr1;
 	u_char irr2;
 
-	mtx_lock_spin(&icu_lock);
 	irr1 = inb(IO_ICU1+1);
 	irr2 = inb(IO_ICU2+1);
-	mtx_unlock_spin(&icu_lock);
 	return ((irr2 << 8) | irr1);
 }