[PATCH][next] 6lowpan: fix off-by-one comparison of index id with LOWPAN_IPHC_CTX_TABLE_SIZE

[Colin King]

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

The WARN_ON_ONCE check on id is off-by-one, it should be greater or equal
to LOWPAN_IPHC_CTX_TABLE_SIZE and not greater than. Fix this.

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
 net/6lowpan/debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/6lowpan/debugfs.c b/net/6lowpan/debugfs.c
index 1c140af06d52..a510bed8165b 100644
--- a/net/6lowpan/debugfs.c
+++ b/net/6lowpan/debugfs.c
@@ -170,7 +170,7 @@ static void lowpan_dev_debugfs_ctx_init(struct net_device *dev,
 	struct dentry *root;
 	char buf[32];
 
-	WARN_ON_ONCE(id > LOWPAN_IPHC_CTX_TABLE_SIZE);
+	WARN_ON_ONCE(id >= LOWPAN_IPHC_CTX_TABLE_SIZE);
 
 	sprintf(buf, "%d", id);
 
-- 
2.20.1