From fea88a13a5d14b9f56fa338b47f2044806b3e64d Mon Sep 17 00:00:00 2001 From: Chen Ni Date: Fri, 5 Jul 2024 17:28:00 +0800 Subject: [PATCH] backlight: l4f00242t03: Add check for spi_setup Add check for the return value of spi_setup() and return the error if it fails in order to catch the error. Signed-off-by: Chen Ni Reviewed-by: Daniel Thompson Link: https://lore.kernel.org/r/20240705092800.3221159-1-nichen@iscas.ac.cn Signed-off-by: Lee Jones --- drivers/video/backlight/l4f00242t03.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c index dd0874f8c7ff..4175a4603071 100644 --- a/drivers/video/backlight/l4f00242t03.c +++ b/drivers/video/backlight/l4f00242t03.c @@ -166,6 +166,7 @@ static const struct lcd_ops l4f_ops = { static int l4f00242t03_probe(struct spi_device *spi) { struct l4f00242t03_priv *priv; + int ret; priv = devm_kzalloc(&spi->dev, sizeof(struct l4f00242t03_priv), GFP_KERNEL); @@ -174,7 +175,9 @@ static int l4f00242t03_probe(struct spi_device *spi) spi_set_drvdata(spi, priv); spi->bits_per_word = 9; - spi_setup(spi); + ret = spi_setup(spi); + if (ret < 0) + return dev_err_probe(&spi->dev, ret, "Unable to setup spi.\n"); priv->spi = spi;