Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Anup Patel <anup.patel@wdc.com>,
        Palmer Dabbelt <palmerdabbelt@google.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.11 185/329] RISC-V: Fix error code returned by riscv_hartid_to_cpuid()
Date:   Mon, 17 May 2021 16:01:36 +0200
Message-Id: <20210517140308.389910521@linuxfoundation.org>
In-Reply-To: <20210517140302.043055203@linuxfoundation.org>
References: <20210517140302.043055203@linuxfoundation.org>
User-Agent: quilt/0.66
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Anup Patel <anup.patel@wdc.com>

[ 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: 6825c7a80f18 ("RISC-V: Add logical CPU indexing for RISC-V")
Fixes: f99fb607fb2b ("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>
---
 arch/riscv/kernel/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c
index ea028d9e0d24..d44567490d91 100644
--- a/arch/riscv/kernel/smp.c
+++ b/arch/riscv/kernel/smp.c
@@ -54,7 +54,7 @@ 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)
-- 
2.30.2