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authorKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>2025-01-04 14:56:05 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-02-17 10:05:32 +0100
commit8fd332aebde33b9d043ea96e684b9e6a47a56833 (patch)
tree2b86fbc392c743ef7e674cbe1986ff98071d1e5b
parent46607b0ab14086e2a3e3621777865fa5d619a6ac (diff)
soc: samsung: exynos-pmu: Fix uninitialized ret in tensor_set_bits_atomic()
commit eca836dfd8386b32f1aae60f8e323218ac6a0b75 upstream. If tensor_set_bits_atomic() is called with a mask of 0 the function will just iterate over its bit, not perform any updates and return stack value of 'ret'. Also reported by smatch: drivers/soc/samsung/exynos-pmu.c:129 tensor_set_bits_atomic() error: uninitialized symbol 'ret'. Fixes: 0b7c6075022c ("soc: samsung: exynos-pmu: Add regmap support for SoCs that protect PMU regs") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250104135605.109209-1-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/soc/samsung/exynos-pmu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c
index d8c53cec7f37..dd5256e5aae1 100644
--- a/drivers/soc/samsung/exynos-pmu.c
+++ b/drivers/soc/samsung/exynos-pmu.c
@@ -126,7 +126,7 @@ static int tensor_set_bits_atomic(void *ctx, unsigned int offset, u32 val,
if (ret)
return ret;
}
- return ret;
+ return 0;
}
static bool tensor_is_atomic(unsigned int reg)