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[Qemu-devel] [PULL 7/8] ioapic: remove useless lower bounds check


From: Paolo Bonzini
Subject: [Qemu-devel] [PULL 7/8] ioapic: remove useless lower bounds check
Date: Fri, 6 Jul 2018 19:14:27 +0200

The vector cannot be negative.  Coverity now reports this because it sees an
array access before the check, in ioapic_stat_update_irq.

Reviewed-by: Peter Xu <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 hw/intc/ioapic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/intc/ioapic.c b/hw/intc/ioapic.c
index b393780..b6896ac 100644
--- a/hw/intc/ioapic.c
+++ b/hw/intc/ioapic.c
@@ -152,7 +152,7 @@ static void ioapic_set_irq(void *opaque, int vector, int 
level)
     if (vector == 0) {
         vector = 2;
     }
-    if (vector >= 0 && vector < IOAPIC_NUM_PINS) {
+    if (vector < IOAPIC_NUM_PINS) {
         uint32_t mask = 1 << vector;
         uint64_t entry = s->ioredtbl[vector];
 
-- 
1.8.3.1





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