From: Dan Carpenter <dan.carpenter@oracle.com>
To: kernel-janitors@vger.kernel.org
Subject: [patch] sparc32: off by ones in BUG_ON()
Date: Fri, 15 Jul 2016 11:05:33 +0000 [thread overview]
Message-ID: <20160715110533.GA9258@mwanda> (raw)
Smatch complains that these tests are off by one, which is true but not
life threatening.
arch/sparc/kernel/irq_32.c:169 irq_link()
error: buffer overflow 'irq_map' 384 <= 384
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c
index a979e99..cac4a55 100644
--- a/arch/sparc/kernel/irq_32.c
+++ b/arch/sparc/kernel/irq_32.c
@@ -165,7 +165,7 @@ void irq_link(unsigned int irq)
p = &irq_table[irq];
pil = p->pil;
- BUG_ON(pil > SUN4D_MAX_IRQ);
+ BUG_ON(pil >= SUN4D_MAX_IRQ);
p->next = irq_map[pil];
irq_map[pil] = p;
@@ -182,7 +182,7 @@ void irq_unlink(unsigned int irq)
spin_lock_irqsave(&irq_map_lock, flags);
p = &irq_table[irq];
- BUG_ON(p->pil > SUN4D_MAX_IRQ);
+ BUG_ON(p->pil >= SUN4D_MAX_IRQ);
pnext = &irq_map[p->pil];
while (*pnext != p)
pnext = &(*pnext)->next;
next reply other threads:[~2016-07-15 11:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-15 11:05 Dan Carpenter [this message]
2016-07-28 5:53 ` [patch] sparc32: off by ones in BUG_ON() David Miller
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