From 064b022c7adb2d853378078a9dc141f8288d1c73 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 6 Dec 2006 20:36:37 -0800
Subject: [PATCH] profile: fix uaccess handling

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/profile.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'kernel/profile.c')

diff --git a/kernel/profile.c b/kernel/profile.c
index f940b462eec9..15b012df4ff1 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -442,7 +442,8 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	read = 0;
 
 	while (p < sizeof(unsigned int) && count > 0) {
-		put_user(*((char *)(&sample_step)+p),buf);
+		if (put_user(*((char *)(&sample_step)+p),buf))
+			return -EFAULT;
 		buf++; p++; count--; read++;
 	}
 	pnt = (char *)prof_buffer + p - sizeof(atomic_t);
-- 
cgit