From 69da3f2ac528642acbd06ed14564ac1b9a918394 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Mon, 18 May 2015 18:33:28 +0200 Subject: [PATCH] can: mcp251x: get regulators optionally The regulators power and transceiver are optional. If those are not present, the pointer (or error pointer) is correctly handled by the driver, hence we can use devm_regulator_get_optional safely, which avoids regulators getting created. Signed-off-by: Stefan Agner Signed-off-by: Marc Kleine-Budde --- drivers/net/can/spi/mcp251x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c index 3b2f34e6ba9b..b7e83c212023 100644 --- a/drivers/net/can/spi/mcp251x.c +++ b/drivers/net/can/spi/mcp251x.c @@ -1086,8 +1086,8 @@ static int mcp251x_can_probe(struct spi_device *spi) if (ret) goto out_clk; - priv->power = devm_regulator_get(&spi->dev, "vdd"); - priv->transceiver = devm_regulator_get(&spi->dev, "xceiver"); + priv->power = devm_regulator_get_optional(&spi->dev, "vdd"); + priv->transceiver = devm_regulator_get_optional(&spi->dev, "xceiver"); if ((PTR_ERR(priv->power) == -EPROBE_DEFER) || (PTR_ERR(priv->transceiver) == -EPROBE_DEFER)) { ret = -EPROBE_DEFER; -- 2.20.1