netdev - [net 10/15] can: tcan4x5x: tcan4x5x_can_probe(): add missing error checking for devm_regmap

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Message-Id: <20201115174131.2089251-11-mkl@pengutronix.de>
Date:   Sun, 15 Nov 2020 18:41:26 +0100
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, linux-can@...r.kernel.org,
        kernel@...gutronix.de, Marc Kleine-Budde <mkl@...gutronix.de>,
        Dan Murphy <dmurphy@...com>
Subject: [net 10/15] can: tcan4x5x: tcan4x5x_can_probe(): add missing error checking for devm_regmap_init()

This patch adds the missing error checking when initializing the regmap
interface fails.

Fixes: 5443c226ba91 ("can: tcan4x5x: Add tcan4x5x driver to the kernel")
Cc: Dan Murphy <dmurphy@...com>
Link: http://lore.kernel.org/r/20201019154233.1262589-7-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/m_can/tcan4x5x.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/can/m_can/tcan4x5x.c b/drivers/net/can/m_can/tcan4x5x.c
index eacd428e07e9..f058bd9104e9 100644
--- a/drivers/net/can/m_can/tcan4x5x.c
+++ b/drivers/net/can/m_can/tcan4x5x.c
@@ -487,6 +487,10 @@ static int tcan4x5x_can_probe(struct spi_device *spi)
 
 	priv->regmap = devm_regmap_init(&spi->dev, &tcan4x5x_bus,
 					&spi->dev, &tcan4x5x_regmap);
+	if (IS_ERR(priv->regmap)) {
+		ret = PTR_ERR(priv->regmap);
+		goto out_clk;
+	}
 
 	ret = tcan4x5x_power_enable(priv->power, 1);
 	if (ret)
-- 
2.29.2