[PATCH] sched: fix strncmp operation

[Hillf Danton]

One of the operands, buf, is incorrect, since it is stripped and the
correct address for subsequent string comparing could change if
leading white spaces, if any, are removed from buf.

It is fixed by replacing buf with cmp.

Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
---

--- a/kernel/sched.c	2010-11-01 19:54:12.000000000 +0800
+++ b/kernel/sched.c	2011-01-06 20:52:02.000000000 +0800
@@ -751,7 +751,7 @@ sched_feat_write(struct file *filp, cons
 	buf[cnt] = 0;
 	cmp = strstrip(buf);

-	if (strncmp(buf, "NO_", 3) == 0) {
+	if (strncmp(cmp, "NO_", 3) == 0) {
 		neg = 1;
 		cmp += 3;
 	}
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