netdev - [patch] hsr: off by one sanity check in hsr_register_frame

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Message-ID: <20140228231857.GD22115@elgon.mountain>
Date:	Sat, 1 Mar 2014 02:18:57 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Arvid Brodin <arvid.brodin@...en.se>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] 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@...cle.com>

diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 3d0100f0bae3..83e58449366a 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;
 	}
--
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