From: Cyrill Gorcunov <gorcunov@openvz.org>
Date: Sun, 8 Nov 2009 15:54:31 +0000 (+0300)
Subject: x86, ioapic: Use snrpintf while set names for IO-APIC resourses
X-Git-Tag: v2.6.33-rc1~397^2~13
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=4343fe1024e09e17667f95620ed3e69a7a5f4389;p=linux.git

x86, ioapic: Use snrpintf while set names for IO-APIC resourses

We should be ready that one day MAX_IO_APICS may raise its
number. To prevent memory overwrite we're to use safe
snprintf while set IO-APIC resourse name.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <20091108155431.GC25940@lenovo>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 9ee1c1628c17..24d1458a1822 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -4066,7 +4066,7 @@ static struct resource * __init ioapic_setup_resources(int nr_ioapics)
 	for (i = 0; i < nr_ioapics; i++) {
 		res[i].name = mem;
 		res[i].flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-		sprintf(mem,  "IOAPIC %u", i);
+		snprintf(mem, IOAPIC_RESOURCE_NAME_SIZE, "IOAPIC %u", i);
 		mem += IOAPIC_RESOURCE_NAME_SIZE;
 	}