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backlight: l4f00242t03: Add check for spi_setup

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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 <nichen@iscas.ac.cn>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240705092800.3221159-1-nichen@iscas.ac.cn
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Chen Ni 2024-07-05 17:28:00 +08:00 committed by Lee Jones
parent 8400291e28
commit fea88a13a5
1 changed files with 4 additions and 1 deletions
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5
drivers/video/backlight/l4f00242t03.c
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@ -166,6 +166,7 @@ static const struct lcd_ops l4f_ops = {
static int l4f00242t03_probe(struct spi_device *spi) static int l4f00242t03_probe(struct spi_device *spi)
{ {
struct l4f00242t03_priv *priv; struct l4f00242t03_priv *priv;
int ret;
priv = devm_kzalloc(&spi->dev, sizeof(struct l4f00242t03_priv), priv = devm_kzalloc(&spi->dev, sizeof(struct l4f00242t03_priv),
GFP_KERNEL); GFP_KERNEL);
@ -174,7 +175,9 @@ static int l4f00242t03_probe(struct spi_device *spi)
spi_set_drvdata(spi, priv); spi_set_drvdata(spi, priv);
spi->bits_per_word = 9; 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; priv->spi = spi;