diff --git a/kernel/profile.c b/kernel/profile.c
index f940b46..15b012d 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -442,7 +442,8 @@
 	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);