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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Hulk Robot <hulkci@huawei.com>,
        Zhen Lei <thunder.leizhen@huawei.com>,
        Thierry Reding <treding@nvidia.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.12 249/292] firmware: tegra: Fix error return code in tegra210_bpmp_init()
Date:   Mon, 19 Jul 2021 16:55:11 +0200
Message-Id: <20210719144951.136336744@linuxfoundation.org>
In-Reply-To: <20210719144942.514164272@linuxfoundation.org>
References: <20210719144942.514164272@linuxfoundation.org>
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From: Zhen Lei <thunder.leizhen@huawei.com>

[ Upstream commit 7fea67710e9f6a111a2c9440576f2396ccd92d57 ]

When call irq_get_irq_data() to get the IRQ's irq_data failed, an
appropriate error code -ENOENT should be returned. However, we directly
return 'err', which records the IRQ number instead of the error code.

Fixes: 139251fc2208 ("firmware: tegra: add bpmp driver for Tegra210")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/tegra/bpmp-tegra210.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/tegra/bpmp-tegra210.c b/drivers/firmware/tegra/bpmp-tegra210.c
index ae15940a078e..c32754055c60 100644
--- a/drivers/firmware/tegra/bpmp-tegra210.c
+++ b/drivers/firmware/tegra/bpmp-tegra210.c
@@ -210,7 +210,7 @@ static int tegra210_bpmp_init(struct tegra_bpmp *bpmp)
 	priv->tx_irq_data = irq_get_irq_data(err);
 	if (!priv->tx_irq_data) {
 		dev_err(&pdev->dev, "failed to get IRQ data for TX IRQ\n");
-		return err;
+		return -ENOENT;
 	}
 
 	err = platform_get_irq_byname(pdev, "rx");
-- 
2.30.2