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RISC-V: Fix error code returned by riscv_hartid_to_cpuid()

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[ Upstream commit 533b4f3a789d49574e7ae0f6ececed153f651f97 ]

We should return a negative error code upon failure in
riscv_hartid_to_cpuid() instead of NR_CPUS. This is also
aligned with all uses of riscv_hartid_to_cpuid() which
expect negative error code upon failure.

Fixes: 6825c7a80f ("RISC-V: Add logical CPU indexing for RISC-V")
Fixes: f99fb607fb ("RISC-V: Use Linux logical CPU number instead of hartid")
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Anup Patel 2021-04-15 14:25:22 +05:30 • committed by Greg Kroah-Hartman
commit b8168792c3
1 changed files with 1 additions and 1 deletions
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2
arch/riscv/kernel/smp.c
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@ -51,7 +51,7 @@ int riscv_hartid_to_cpuid(int hartid)
return i;
pr_err("Couldn't find cpu id for hartid [%d]\n", hartid);
return i;
return -ENOENT;
}
void riscv_cpuid_to_hartid_mask(const struct cpumask *in, struct cpumask *out)