[PATCH] i386 io_apic: Use correct index variable when computing the apic that is in ExtInt mode.

Eric W. Biederman
2006-01-06T08:16:46Z

Somehow in all of the chaos this one line bug fix got merged with
the another patch and was then discarded when issues were found
with that other patch.

From: Vivek Goyal <vgoyal@in.ibm.com>

A minor fix to the patch which remembers the location of where i8259 is
connected. Now counter i has been replaced by apic. counter i is having
some junk value which was leading to non-detection of i8259 connected to
IOAPIC.

---

arch/i386/kernel/io_apic.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

b5a215b462de26a1e6c21f607677796f0bb446aa
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 7554f8f..f2dd218 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -1649,7 +1649,7 @@ static void __init enable_IO_APIC(void)
for(apic = 0; apic < nr_ioapics; apic++) {
int pin;
/* See if any of the pins is in ExtINT mode */
- for(pin = 0; pin < nr_ioapic_registers[i]; pin++) {
+ for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) {
struct IO_APIC_route_entry entry;
spin_lock_irqsave(&ioapic_lock, flags);
*(((int *)&entry) + 0) = io_apic_read(apic, 0x10 + 2 * pin);