calypso/irq: Fix array bounds checking

Found by Smatch:
calypso/irq.c +200 irq_register_handler(5) error: buffer overflow 'irq_handlers' 32 <= 32

diff --git a/src/target/firmware/calypso/irq.c b/src/target/firmware/calypso/irq.c
index a3d57fb..136fd55 100644 (file)
--- a/src/target/firmware/calypso/irq.c
+++ b/src/target/firmware/calypso/irq.c
@@ -194,7 +194,7 @@ void fiq(void)
 
 void irq_register_handler(enum irq_nr nr, irq_handler *handler)
 {
-       if (nr > NR_IRQS)
+       if (nr >= NR_IRQS)
                return;
 
        irq_handlers[nr] = handler;