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author | Yang Yingliang <yangyingliang@huawei.com> | 2022-11-26 10:33:15 +0300 |
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committer | Thierry Reding <treding@nvidia.com> | 2023-04-04 15:24:35 +0300 |
commit | 55879dad0f3ae8468444b42f785ad79eac05fe5b (patch) | |
tree | fb18531ae04aa69bd3e4c8e6e85442046efaa720 /drivers/gpu/drm/tegra | |
parent | 8466ff24a37a9a18fb935e90dda64f049131ae28 (diff) | |
download | linux-55879dad0f3ae8468444b42f785ad79eac05fe5b.tar.xz |
gpu: host1x: Fix memory leak of device names
The device names allocated by dev_set_name() need be freed
before module unloading, but they can not be freed because
the kobject's refcount which was set in device_initialize()
has not be decreased to 0.
As comment of device_add() says, if it fails, use only
put_device() drop the refcount, then the name will be
freed in kobejct_cleanup().
device_del() and put_device() can be replaced with
device_unregister(), so call it to unregister the added
successfully devices, and just call put_device() to the
not added device.
Add a release() function to device to avoid null release()
function WARNING in device_release(), it's empty, because
the context devices are freed together in
host1x_memory_context_list_free().
Fixes: 8aa5bcb61612 ("gpu: host1x: Add context device management code")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra')
0 files changed, 0 insertions, 0 deletions