[PATCH v2 1/3] firmware: exynos-acpm: Use unsigned int for acpm_pmic_linux_errmap index
From: Krzysztof Kozlowski <hidden>
Date: 2026-02-19 11:27:26
Also in:
linux-hardening, linux-samsung-soc, lkml, llvm
Subsystem:
arm/samsung s3c, s5p and exynos arm architectures, samsung exynos acpm mailbox protocol, the rest · Maintainers:
Krzysztof Kozlowski, Peter Griffin, Tudor Ambarus, Linus Torvalds
acpm_pmic_to_linux_err() uses an unsigned integer obtained from messages as index of array to map them to error codes. Array index cannot be negative, so make that explicit. Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org> Signed-off-by: Krzysztof Kozlowski <redacted> --- drivers/firmware/samsung/exynos-acpm-pmic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/samsung/exynos-acpm-pmic.c b/drivers/firmware/samsung/exynos-acpm-pmic.c
index 961d7599e422..44265db34ae6 100644
--- a/drivers/firmware/samsung/exynos-acpm-pmic.c
+++ b/drivers/firmware/samsung/exynos-acpm-pmic.c@@ -41,7 +41,7 @@ static const int acpm_pmic_linux_errmap[] = { [2] = -EACCES, /* Write register can't be accessed or issues to access it. */ }; -static int acpm_pmic_to_linux_err(int err) +static int acpm_pmic_to_linux_err(unsigned int err) { if (err >= 0 && err < ARRAY_SIZE(acpm_pmic_linux_errmap)) return acpm_pmic_linux_errmap[err];
--
2.51.0