modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/s390/net/ctcm_sysfs.c
..
..
@@ -39,11 +39,12 @@
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 	struct ctcm_priv *priv = dev_get_drvdata(dev);
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 	int rc;
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-	ndev = priv->channel[CTCM_READ]->netdev;
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-	if (!(priv && priv->channel[CTCM_READ] && ndev)) {
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+	if (!(priv && priv->channel[CTCM_READ] &&
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+	      priv->channel[CTCM_READ]->netdev)) {
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 		CTCM_DBF_TEXT(SETUP, CTC_DBF_ERROR, "bfnondev");
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 		return -ENODEV;
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 	}
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+	ndev = priv->channel[CTCM_READ]->netdev;
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 	rc = kstrtouint(buf, 0, &bs1);
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 	if (rc)