From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 28 Feb 2014 23:18:57 +0000 (+0300)
Subject: hsr: off by one sanity check in hsr_register_frame_in()
X-Git-Tag: upstream/snapshot3+hdmi~3332^2~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=de39d7a4f3693c4247135cbce42716bf2a113577;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

hsr: off by one sanity check in hsr_register_frame_in()

This is a sanity check and we never pass invalid values so this patch
doesn't change anything.  However the node->time_in[] array has
HSR_MAX_SLAVE (2) elements and not HSR_MAX_DEV (3).

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 327060c..7ae0d7f6 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -297,7 +297,7 @@ static bool seq_nr_after(u16 a, u16 b)
 
 void hsr_register_frame_in(struct node_entry *node, enum hsr_dev_idx dev_idx)
 {
-	if ((dev_idx < 0) || (dev_idx >= HSR_MAX_DEV)) {
+	if ((dev_idx < 0) || (dev_idx >= HSR_MAX_SLAVE)) {
 		WARN_ONCE(1, "%s: Invalid dev_idx (%d)\n", __func__, dev_idx);
 		return;
 	}