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drivers/firmware/psci: Assign @err directly in hotplug_tests()

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The return value of down_and_up_cpus() can be assigned to @err directly.
With that, the useless assignment to @err with zero can be dropped.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20200630075943.203954-1-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Gavin Shan 2020-06-30 17:59:43 +10:00 committed by Will Deacon
parent c377e67c62
commit 132330f804
1 changed files with 1 additions and 2 deletions
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drivers/firmware/psci/psci_checker.c
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@ -199,13 +199,12 @@ static int hotplug_tests(void)
if (!page_buf)
goto out_free_cpu_groups;
err = 0;
/*
* Of course the last CPU cannot be powered down and cpu_down() should
* refuse doing that.
*/
pr_info("Trying to turn off and on again all CPUs\n");
err += down_and_up_cpus(cpu_online_mask, offlined_cpus);
err = down_and_up_cpus(cpu_online_mask, offlined_cpus);
/*
* Take down CPUs by cpu group this time. When the last CPU is turned