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From: Maxime Chevallier <maxime.chevallier@bootlin.com>
To: davem@davemloft.net
Cc: Maxime Chevallier <maxime.chevallier@bootlin.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	alexis.lothore@bootlin.com, thomas.petazzoni@bootlin.com,
	Andrew Lunn <andrew@lunn.ch>, Jakub Kicinski <kuba@kernel.org>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	Vladimir Oltean <vladimir.oltean@nxp.com>,
	Ioana Ciornei <ioana.ciornei@nxp.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Jose Abreu <joabreu@synopsys.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Simon Horman <simon.horman@corigine.com>
Subject: [PATCH net-next 2/2] net: altera-tse: Initialize the regmap_config struct before using it
Date: Tue,  6 Jun 2023 08:49:14 +0200	[thread overview]
Message-ID: <20230606064914.134945-3-maxime.chevallier@bootlin.com> (raw)
In-Reply-To: <20230606064914.134945-1-maxime.chevallier@bootlin.com>

The regmap_config needs to be zeroed before using it. This will cause
spurious errors at probe time as config->pad_bits is containing random
uninitialized data.

Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
---
 drivers/net/ethernet/altera/altera_tse_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index d866c0f1b503..df509abcd378 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -1255,6 +1255,7 @@ static int altera_tse_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_free_netdev;
 
+	memset(&pcs_regmap_cfg, 0, sizeof(pcs_regmap_cfg));
 	/* SGMII PCS address space. The location can vary depending on how the
 	 * IP is integrated. We can have a resource dedicated to it at a specific
 	 * address space, but if it's not the case, we fallback to the mdiophy0
-- 
2.40.1


      parent reply	other threads:[~2023-06-06  6:49 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-06  6:49 [PATCH net-next 0/2] Followup fixes for the dwmac and altera lynx conversion Maxime Chevallier
2023-06-06  6:49 ` [PATCH net-next 1/2] net: stmmac: Add PCS_LYNX as a dependency for the whole driver Maxime Chevallier
2023-06-06  8:29   ` Geert Uytterhoeven
2023-06-06  9:30     ` Russell King (Oracle)
2023-06-06 10:13       ` Maxime Chevallier
2023-06-06 10:26         ` Russell King (Oracle)
2023-06-06 10:34           ` Russell King (Oracle)
2023-06-06 10:40             ` Russell King (Oracle)
2023-06-06 10:35           ` Geert Uytterhoeven
2023-06-06 10:44             ` Russell King (Oracle)
2023-06-06 12:50               ` Maxime Chevallier
2023-06-06  6:49 ` Maxime Chevallier [this message]

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