linux-kernel - [PATCH] drm/msm: Fix error return code in msm_drm

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Message-ID: <20201117023649.26657-1-liwei391@huawei.com>
Date:   Tue, 17 Nov 2020 10:36:49 +0800
From:   Wei Li <liwei391@...wei.com>
To:     Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rajesh Yadav <ryadav@...eaurora.org>,
        Sravanthi Kollukuduru <skolluku@...eaurora.org>,
        Abhinav Kumar <abhinavk@...eaurora.org>
CC:     <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <guohanjun@...wei.com>
Subject: [PATCH] drm/msm: Fix error return code in msm_drm_init()

When it fail to create crtc_event kthread, it just jump to err_msm_uninit,
while the 'ret' is not updated. So assign the return code before that.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wei Li <liwei391@...wei.com>
---
 drivers/gpu/drm/msm/msm_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 49685571dc0e..37a373c5ced3 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -506,6 +506,7 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
 			"crtc_event:%d", priv->event_thread[i].crtc_id);
 		if (IS_ERR(priv->event_thread[i].worker)) {
 			DRM_DEV_ERROR(dev, "failed to create crtc_event kthread\n");
+			ret = PTR_ERR(priv->event_thread[i].worker);
 			goto err_msm_uninit;
 		}
 
-- 
2.17.1