linux-kernel - [PATCH -next] drm/amdgpu: fix error return code in amdgpu_acpi

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Date:   Mon, 24 May 2021 13:35:48 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     <weiyongjun1@...wei.com>, Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Prike Liang <Prike.Liang@....com>,
        Lijo Lazar <lijo.lazar@....com>,
        Rajneesh Bhardwaj <rajneesh.bhardwaj@....com>,
        Ye Bin <yebin10@...wei.com>, Likun Gao <Likun.Gao@....com>,
        "Fabio M. De Francesco" <fmdefrancesco@...il.com>
CC:     <amd-gfx@...ts.freedesktop.org>, <dri-devel@...ts.freedesktop.org>,
        <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>,
        Hulk Robot <hulkci@...wei.com>
Subject: [PATCH -next] drm/amdgpu: fix error return code in amdgpu_acpi_init()

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

Fixes: 77bf762f8b30 ("drm/amdgpu/acpi: unify ATCS handling (v3)")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 49563ff87f1a..9564690b21b4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -895,12 +895,15 @@ int amdgpu_acpi_init(struct amdgpu_device *adev)
 atcs:
 	/* Probe for ATCS, and initialize it if found */
 	atcs_handle = amdgpu_atcs_probe_handle(handle);
-	if (!atcs_handle)
+	if (!atcs_handle) {
+		ret = -ENODEV;
 		goto out;
+	}
 
 	atcs = kzalloc(sizeof(*atcs), GFP_KERNEL);
 	if (!atcs) {
 		DRM_WARN("Not enough memory to initialize ATCS\n");
+		ret = -ENOMEM;
 		goto out;
 	}
 	atcs->handle = atcs_handle;