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drm/qxl: prevent memory leak

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[ Upstream commit 0e8b9f258b ]

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>
This commit is contained in:
Zongmin Zhou 2023-08-01 10:53:09 +08:00 committed by Greg Kroah-Hartman
parent dc0cbcba24
commit 01834d420e
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/qxl/qxl_display.c
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@ -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;