From: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Date: Mon, 25 Aug 2014 12:56:19 +0000 (+0200)
Subject: stmmac: set ptp_clock to NULL while unregister
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f95f4045c734f801031782c8c6f8a5f381b0f69c;p=linux-beck.git

stmmac: set ptp_clock to NULL while unregister

This is to properly put to NULL the ptp_clock while un-register the PTP support.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
index b7ad3565566c..c5ee79d8a8c5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
@@ -206,6 +206,7 @@ void stmmac_ptp_unregister(struct stmmac_priv *priv)
 {
 	if (priv->ptp_clock) {
 		ptp_clock_unregister(priv->ptp_clock);
+		priv->ptp_clock = NULL;
 		pr_debug("Removed PTP HW clock successfully on %s\n",
 			 priv->dev->name);
 	}