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From: Marc Kleine-Budde <mkl@pengutronix.de>
To: linux-can@vger.kernel.org
Cc: kernel@pengutronix.de, Dan Murphy <dmurphy@ti.com>,
	Marc Kleine-Budde <mkl@pengutronix.de>
Subject: [net-rfc 06/12] can: tcan4x5x: tcan4x5x_can_probe(): add missing error checking for devm_regmap_init()
Date: Mon, 19 Oct 2020 17:42:27 +0200
Message-ID: <20201019154233.1262589-7-mkl@pengutronix.de> (raw)
In-Reply-To: <20201019154233.1262589-1-mkl@pengutronix.de>

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@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.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 e29da7fe442e..b163e126aa76 100644
--- a/drivers/net/can/m_can/tcan4x5x.c
+++ b/drivers/net/can/m_can/tcan4x5x.c
@@ -483,6 +483,10 @@ 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)
-- 
2.28.0


  parent reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-19 15:42 [RFC]: can 2020-10-19: m_can/tcan4x5x Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 01/12] can: m_can: remove double clearing of clock stop request bit Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 02/12] can: m_can: m_can_handle_state_change(): fix state change Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 03/12] can: tcan4x5x: replace depends on REGMAP_SPI with depends on SPI Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 04/12] can: tcan4x5x: tcan4x5x_clear_interrupts(): remove redundant return statement Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 05/12] can: tcan4x5x: Rename parse_config() function Marc Kleine-Budde
2020-10-19 15:42 ` Marc Kleine-Budde [this message]
2020-10-19 15:42 ` [net-rfc 07/12] can: m_can: m_can_class_free_dev(): introduce new function Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 08/12] can: m_can: Fix freeing of can device from peripherials Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 09/12] can: m_can: tcan4x5x: tcan4x5x_can_remove(): fix order of deregistration Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 10/12] can: tcan4x5x: Move clock init to TCAN driver Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 11/12] can: m_can_platform: Move clock discovery and init to platform Marc Kleine-Budde
2020-10-19 15:42 ` [net-rfc 12/12] can: m_can: Remove unused clock function from the framework Marc Kleine-Budde

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