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From:   zhanglianjie <zhanglianjie@uniontech.com>
To:     =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Cc:     Alex Deucher <alexander.deucher@amd.com>,
        PanXinhui <Xinhui.Pan@amd.com>, David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>, amd-gfx@lists.freedesktop.org,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        zhanglianjie <zhanglianjie@uniontech.com>
Subject: [PATCH v4 2/2] drm/radeon/uvd: Fix forgotten unmap buffer objects
Date:   Tue,  8 Feb 2022 16:14:43 +0800
Message-Id: <20220208081443.28210-1-zhanglianjie@uniontech.com>
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Feedback-ID: bizesmtp:uniontech.com:qybgforeign:qybgforeign5
Precedence: bulk

after the buffer object is successfully mapped, call radeon_bo_kunmap before the function returns.

Signed-off-by: zhanglianjie <zhanglianjie@uniontech.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index 377f9cdb5b53..0558d928d98d 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -497,6 +497,7 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
 	handle = msg[2];

 	if (handle == 0) {
+		radeon_bo_kunmap(bo);
 		DRM_ERROR("Invalid UVD handle!\n");
 		return -EINVAL;
 	}
@@ -559,12 +560,10 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
 		return 0;

 	default:
-
 		DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
-		return -EINVAL;
 	}

-	BUG();
+	radeon_bo_kunmap(bo);
 	return -EINVAL;
 }

--
2.20.1