From: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
To: Tudor Ambarus <tudor.ambarus@linaro.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
Alim Akhtar <alim.akhtar@samsung.com>,
Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
Bill Wendling <morbo@google.com>,
Justin Stitt <justinstitt@google.com>
Cc: linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-hardening@vger.kernel.org, llvm@lists.linux.dev,
Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Subject: [PATCH RFT 1/3] firmware: exynos-acpm: Use unsigned int for acpm_pmic_linux_errmap index
Date: Sat, 14 Feb 2026 13:39:40 +0100 [thread overview]
Message-ID: <20260214-firmare-acpm-counted-v1-1-32af5735470e@oss.qualcomm.com> (raw)
In-Reply-To: <20260214-firmare-acpm-counted-v1-0-32af5735470e@oss.qualcomm.com>
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.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
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
next prev parent reply other threads:[~2026-02-14 12:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-14 12:39 [PATCH RFT 0/3] firmware: exynos-acpm: Use __counted_by() Krzysztof Kozlowski
2026-02-14 12:39 ` Krzysztof Kozlowski [this message]
2026-02-19 10:16 ` [PATCH RFT 1/3] firmware: exynos-acpm: Use unsigned int for acpm_pmic_linux_errmap index Tudor Ambarus
2026-02-14 12:39 ` [PATCH RFT 2/3] firmware: exynos-acpm: Count number of commands in acpm_xfer Krzysztof Kozlowski
2026-02-14 19:13 ` Krzysztof Kozlowski
2026-02-19 10:27 ` Tudor Ambarus
2026-02-19 10:31 ` Krzysztof Kozlowski
2026-02-14 12:39 ` [PATCH RFT 3/3] firmware: exynos-acpm: Count acpm_xfer buffers with __counted_by_ptr Krzysztof Kozlowski
2026-02-19 11:20 ` Tudor Ambarus
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