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SubjectApplied "spi: Add missing error handling for CS GPIOs" to the spi tree
The patch

spi: Add missing error handling for CS GPIOs

has been applied to the spi tree at

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From 1723fdec5fcbc4de3d26bbb23a9e1704ee258955 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <>
Date: Wed, 3 Apr 2019 16:46:56 +0200
Subject: [PATCH] spi: Add missing error handling for CS GPIOs

While devm_gpiod_get_index_optional() returns NULL if the GPIO is not
present (i.e. -ENOENT), it may still return other error codes, like
-EPROBE_DEFER. Currently these are not handled, leading to
unrecoverable failures later in case of probe deferral:

gpiod_set_consumer_name: invalid GPIO (errorpointer)
gpiod_direction_output: invalid GPIO (errorpointer)
gpiod_set_value_cansleep: invalid GPIO (errorpointer)
gpiod_set_value_cansleep: invalid GPIO (errorpointer)
gpiod_set_value_cansleep: invalid GPIO (errorpointer)

Detect and propagate errors to fix this.

Fixes: f3186dd876697e69 ("spi: Optionally use GPIO descriptors for CS GPIOs")
Signed-off-by: Geert Uytterhoeven <>
Signed-off-by: Mark Brown <>
drivers/spi/spi.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 2be394d3bc59..7b6494bd8a9b 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2197,6 +2197,8 @@ static int spi_get_gpio_descs(struct spi_controller *ctlr)
cs[i] = devm_gpiod_get_index_optional(dev, "cs", i,
+ if (IS_ERR(cs[i]))
+ return PTR_ERR(cs[i]);

if (cs[i]) {
 \ /
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