linux-kernel - [PATCH] drm/panfrost: Fix leak when free gem object

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Message-Id: <20250710030527.167710-1-lihongtao@kylinos.cn>
Date: Thu, 10 Jul 2025 11:05:27 +0800
From: lihongtao <lihongtao@...inos.cn>
To: Boris Brezillon <boris.brezillon@...labora.com>
Cc: Rob Herring <robh@...nel.org>,
	Steven Price <steven.price@....com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	lihongtao <lihongtao@...inos.cn>
Subject: [PATCH] drm/panfrost: Fix leak when free gem object

obj->mappings.lock should be destroyed when free
panfrost gem object in panfrost_gem_free_object.

Signed-off-by: lihongtao <lihongtao@...inos.cn>
---
 drivers/gpu/drm/panfrost/panfrost_gem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c
index 963f04ba2de6..00549f482eec 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gem.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gem.c
@@ -49,6 +49,7 @@ static void panfrost_gem_free_object(struct drm_gem_object *obj)
 		kvfree(bo->sgts);
 	}
 
+	mutex_destroy(&bo->mappings.lock);
 	drm_gem_shmem_free(&bo->base);
 }
 
-- 
2.25.1