[PATCH] m68k: Fix off-by-one in m68k_setup_user_interrupt()

[Geert Uytterhoeven]

commit 69961c375288bdab7604e0bb1c8d22999bb8a347 ("[PATCH] m68k/Atari: Interrupt
updates") added a BUG_ON() with an incorrect upper bound comparison, which
causes an early crash on VME boards, where IRQ_USER is 8, cnt is 192 and
NR_IRQS is 200.

Reported-by: Stephen N Chivers <schivers@xxxxxxxxxx>
Tested-by: Kars de Jong <jongk@xxxxxxxxxxxxxx>
Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxx
---
 arch/m68k/kernel/ints.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/m68k/kernel/ints.c
+++ b/arch/m68k/kernel/ints.c
@@ -133,7 +133,7 @@ void __init m68k_setup_user_interrupt(un
 {
 	int i;
 
-	BUG_ON(IRQ_USER + cnt >= NR_IRQS);
+	BUG_ON(IRQ_USER + cnt > NR_IRQS);
 	m68k_first_user_vec = vec;
 	for (i = 0; i < cnt; i++)
 		irq_controller[IRQ_USER + i] = &user_irq_controller;

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/