From be20c800eb7e00487c77759f45e1f9a32857b9d8 Mon Sep 17 00:00:00 2001
From: Cliff Wickman <cpw@sgi.com>
Date: Tue, 24 Jun 2008 10:20:06 -0700
Subject: [PATCH] --- yaml --- r: 98433 b: refs/heads/master c:
 8097110d179b874d91c6495330c2b96c991e8c6e h: refs/heads/master i:   98431:
 a3b24e68464f26f7b75355186e687877ee559706 v: v3

---
 [refs]                                  | 2 +-
 trunk/arch/ia64/sn/kernel/sn2/sn2_smp.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 7d9f5cbd3f49..290bb9b65c0d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2826f8c0f4c97b7db33e2a680f184d828eb7a785
+refs/heads/master: 8097110d179b874d91c6495330c2b96c991e8c6e
diff --git a/trunk/arch/ia64/sn/kernel/sn2/sn2_smp.c b/trunk/arch/ia64/sn/kernel/sn2/sn2_smp.c
index 6dd886c5d860..e585f9a2afb9 100644
--- a/trunk/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/trunk/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -512,7 +512,7 @@ static ssize_t sn2_ptc_proc_write(struct file *file, const char __user *user, si
 	int cpu;
 	char optstr[64];
 
-	if (count > sizeof(optstr))
+	if (count == 0 || count > sizeof(optstr))
 		return -EINVAL;
 	if (copy_from_user(optstr, user, count))
 		return -EFAULT;