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[ Upstream commit 25148f57a2a6d157779bae494852e172952ba980 ] Constraint functions have return values, they should be checked for potential errors. Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Link: https://lore.kernel.org/r/20230519201711.4073845-8-amadeuszx.slawinski@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>