From: Zongmin Zhou zhouzongmin@kylinos.cn
stable inclusion from stable-v6.6.3 commit 01834d420e27f2e51aa5ee8ae62926371654c5db category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8LBQP
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 0e8b9f258baed25f1c5672613699247c76b007b5 ]
The allocated memory for qdev->dumb_heads should be released in qxl_destroy_monitors_object before qxl suspend. otherwise,qxl_create_monitors_object will be called to reallocate memory for qdev->dumb_heads after qxl resume, it will cause memory leak.
Signed-off-by: Zongmin Zhou zhouzongmin@kylinos.cn Link: https://lore.kernel.org/r/20230801025309.4049813-1-zhouzongmin@kylinos.cn Reviewed-by: Dave Airlie airlied@redhat.com Signed-off-by: Maxime Ripard mripard@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/gpu/drm/qxl/qxl_display.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c index 6492a70e3c39..404b0483bb7c 100644 --- a/drivers/gpu/drm/qxl/qxl_display.c +++ b/drivers/gpu/drm/qxl/qxl_display.c @@ -1229,6 +1229,9 @@ int qxl_destroy_monitors_object(struct qxl_device *qdev) if (!qdev->monitors_config_bo) return 0;
+ kfree(qdev->dumb_heads); + qdev->dumb_heads = NULL; + qdev->monitors_config = NULL; qdev->ram_header->monitors_config = 0;