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[ Upstream commit9d35d068fb] Change the 'ret' variable from u32 to int to store negative error codes or zero returned by of_property_read_u32(). Storing the negative error codes in unsigned type, doesn't cause an issue at runtime but it's ugly as pants. Additionally, assigning negative error codes to unsigned type may trigger a GCC warning when the -Wsign-conversion flag is enabled. No effect on runtime. Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Fixes:0fbeae70ee("regulator: add SCMI driver") Link: https://patch.msgid.link/20250829101411.625214-1-rongqianfeng@vivo.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>