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https://github.com/coolsnowwolf/lede.git
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26 lines
983 B
Diff
26 lines
983 B
Diff
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From f8f3e202fb083906fbc98ef6ea445e424779c076 Mon Sep 17 00:00:00 2001
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From: Richard Oliver <richard.oliver@raspberrypi.com>
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Date: Tue, 25 Feb 2025 15:22:46 +0000
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Subject: [PATCH] spi: rp2040-gpio-bridge: fix gpiod error handling
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In some circumstances, devm_gpiod_get_array_optional() can return
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PTR_ERR rather than NULL to indicate failure. Handle these cases.
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Signed-off-by: Richard Oliver <richard.oliver@raspberrypi.com>
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---
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drivers/spi/spi-rp2040-gpio-bridge.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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--- a/drivers/spi/spi-rp2040-gpio-bridge.c
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+++ b/drivers/spi/spi-rp2040-gpio-bridge.c
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@@ -956,7 +956,8 @@ static void rp2040_gbdg_parse_dt(struct
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rp2040_gbdg->fast_xfer_gpios =
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devm_gpiod_get_array_optional(dev, "fast_xfer", GPIOD_ASIS);
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- if (!rp2040_gbdg->fast_xfer_gpios) {
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+ if (IS_ERR_OR_NULL(rp2040_gbdg->fast_xfer_gpios)) {
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+ rp2040_gbdg->fast_xfer_gpios = NULL;
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dev_info(dev, "Could not acquire fast_xfer-gpios\n");
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goto node_put;
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}
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