diff --git a/drivers/net/pse-pd/si3474.c b/drivers/net/pse-pd/si3474.c
index a66a982e5ec4..35152d462e82 100644
--- a/drivers/net/pse-pd/si3474.c
+++ b/drivers/net/pse-pd/si3474.c
@@ -250,9 +250,9 @@ static int si3474_get_of_channels(struct si3474_priv *priv)
 					"Failed to read channel reg property\n");
 				return ret;
 			}
-			if (chan_id > SI3474_MAX_CHANS) {
+			if (chan_id >= SI3474_MAX_CHANS) {
 				dev_err(&priv->client[0]->dev,
-					"Incorrect channel number: %d\n", chan_id);
+					"Incorrect channel number: %u\n", chan_id);
 				return -EINVAL;
 			}
 
@@ -267,6 +267,16 @@ static int si3474_get_of_channels(struct si3474_priv *priv)
 				pi->np);
 			return -EINVAL;
 		}
+
+		/* The 2P/4P mode bit pairs channels 0+1 and 2+3 of a quad */
+		if (pairset_found &&
+		    (priv->pi[pi_no].chan[0] ^ 1) != priv->pi[pi_no].chan[1]) {
+			dev_err(&priv->client[0]->dev,
+				"PI %pOF: channels %u and %u are not a channel pair\n",
+				pi->np, priv->pi[pi_no].chan[0],
+				priv->pi[pi_no].chan[1]);
+			return -EINVAL;
+		}
 	}
 
 	return 0;