[PATCH 5.4 083/158] can: tcan4x5x: tcan4x5x_can_probe(): add missing error checking for devm_regmap_init()

[Greg Kroah-Hartman]

From: Marc Kleine-Budde <m...@pengutronix.de>

[ Upstream commit 1ff203badbbf1738027c8395d5b40b0d462b6e4d ]

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 <dmur...@ti.com>
Link: http://lore.kernel.org/r/20201019154233.1262589-7-...@pengutronix.de
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 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 b233756345f83..11c223a534887 100644
--- a/drivers/net/can/m_can/tcan4x5x.c
+++ b/drivers/net/can/m_can/tcan4x5x.c
@@ -467,6 +467,10 @@ 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;
+       }
 
        tcan4x5x_power_enable(priv->power, 1);
 
-- 
2.27.0