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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>,
        Laurentiu Tudor <laurentiu.tudor@nxp.com>,
        Zhang Changzhong <zhangchangzhong@huawei.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.10 384/717] bus: fsl-mc: fix error return code in fsl_mc_object_allocate()
Date:   Mon, 28 Dec 2020 13:46:22 +0100
Message-Id: <20201228125039.400949280@linuxfoundation.org>
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From: Zhang Changzhong <zhangchangzhong@huawei.com>

[ Upstream commit 3d70fb03711c37bc64e8e9aea5830f498835f6bf ]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 197f4d6a4a00 ("staging: fsl-mc: fsl-mc object allocator driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Link: https://lore.kernel.org/r/1607068967-31991-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bus/fsl-mc/fsl-mc-allocator.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/bus/fsl-mc/fsl-mc-allocator.c b/drivers/bus/fsl-mc/fsl-mc-allocator.c
index e71a6f52ea0cf..2d7c764bb7dcf 100644
--- a/drivers/bus/fsl-mc/fsl-mc-allocator.c
+++ b/drivers/bus/fsl-mc/fsl-mc-allocator.c
@@ -292,8 +292,10 @@ int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev,
 		goto error;
 
 	mc_adev = resource->data;
-	if (!mc_adev)
+	if (!mc_adev) {
+		error = -EINVAL;
 		goto error;
+	}
 
 	mc_adev->consumer_link = device_link_add(&mc_dev->dev,
 						 &mc_adev->dev,
-- 
2.27.0