[ Upstream commit c377e67c6271954969384f9be1b1b71de13eba30 ] The CPU mask (@tmp) should be released on failing to allocate @cpu_groups or any of its elements. Otherwise, it leads to memory leakage because the CPU mask variable is dynamically allocated when CONFIG_CPUMASK_OFFSTACK is enabled. Signed-off-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20200630075227.199624-1-gshan@redhat.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>