| Message ID | 20240904123607.3407364-11-lizetao1@huawei.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Jiri Kosina |
| Headers | show |
| Series | HID: convert to devm_hid_hw_start_and_open() | expand |
On Sep 04 2024, Li Zetao wrote: > Currently, the hid-steam module needs to maintain hid resources > by itself. Consider using devm_hid_hw_start_and_open helper to ensure > that hid resources are consistent with the device life cycle, and release > hid resources before device is released. At the same time, it can avoid > the goto-release encoding, drop the err_hw_close and err_hw_stop lables. > > Signed-off-by: Li Zetao <lizetao1@huawei.com> > --- > drivers/hid/hid-steam.c | 18 ++---------------- > 1 file changed, 2 insertions(+), 16 deletions(-) > > diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c > index bf8b633114be..d393762bf52f 100644 > --- a/drivers/hid/hid-steam.c > +++ b/drivers/hid/hid-steam.c > @@ -1236,18 +1236,10 @@ static int steam_probe(struct hid_device *hdev, > * With the real steam controller interface, do not connect hidraw. > * Instead, create the client_hid and connect that. > */ > - ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDRAW); > + ret = devm_hid_hw_start_and_open(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDRAW); > if (ret) > goto err_cancel_work; > > - ret = hid_hw_open(hdev); > - if (ret) { > - hid_err(hdev, > - "%s:hid_hw_open\n", > - __func__); > - goto err_hw_stop; > - } > - > if (steam->quirks & STEAM_QUIRK_WIRELESS) { > hid_info(hdev, "Steam wireless receiver connected"); > /* If using a wireless adaptor ask for connection status */ > @@ -1261,7 +1253,7 @@ static int steam_probe(struct hid_device *hdev, > hid_err(hdev, > "%s:steam_register failed with error %d\n", > __func__, ret); > - goto err_hw_close; > + goto err_cancel_work; > } > } > > @@ -1283,10 +1275,6 @@ static int steam_probe(struct hid_device *hdev, > err_steam_unregister: > if (steam->connected) > steam_unregister(steam); > -err_hw_close: > - hid_hw_close(hdev); > -err_hw_stop: > - hid_hw_stop(hdev); > err_cancel_work: > cancel_work_sync(&steam->work_connect); > cancel_delayed_work_sync(&steam->mode_switch); > @@ -1312,8 +1300,6 @@ static void steam_remove(struct hid_device *hdev) > if (steam->quirks & STEAM_QUIRK_WIRELESS) { > hid_info(hdev, "Steam wireless receiver disconnected"); > } > - hid_hw_close(hdev); > - hid_hw_stop(hdev); > steam_unregister(steam); steam_unregister was called after hid_hw_stop, and now it's before. Someone should ensure this is correct... Cheers, Benjamin > } > > -- > 2.34.1 >
diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c index bf8b633114be..d393762bf52f 100644 --- a/drivers/hid/hid-steam.c +++ b/drivers/hid/hid-steam.c @@ -1236,18 +1236,10 @@ static int steam_probe(struct hid_device *hdev, * With the real steam controller interface, do not connect hidraw. * Instead, create the client_hid and connect that. */ - ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDRAW); + ret = devm_hid_hw_start_and_open(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDRAW); if (ret) goto err_cancel_work; - ret = hid_hw_open(hdev); - if (ret) { - hid_err(hdev, - "%s:hid_hw_open\n", - __func__); - goto err_hw_stop; - } - if (steam->quirks & STEAM_QUIRK_WIRELESS) { hid_info(hdev, "Steam wireless receiver connected"); /* If using a wireless adaptor ask for connection status */ @@ -1261,7 +1253,7 @@ static int steam_probe(struct hid_device *hdev, hid_err(hdev, "%s:steam_register failed with error %d\n", __func__, ret); - goto err_hw_close; + goto err_cancel_work; } } @@ -1283,10 +1275,6 @@ static int steam_probe(struct hid_device *hdev, err_steam_unregister: if (steam->connected) steam_unregister(steam); -err_hw_close: - hid_hw_close(hdev); -err_hw_stop: - hid_hw_stop(hdev); err_cancel_work: cancel_work_sync(&steam->work_connect); cancel_delayed_work_sync(&steam->mode_switch); @@ -1312,8 +1300,6 @@ static void steam_remove(struct hid_device *hdev) if (steam->quirks & STEAM_QUIRK_WIRELESS) { hid_info(hdev, "Steam wireless receiver disconnected"); } - hid_hw_close(hdev); - hid_hw_stop(hdev); steam_unregister(steam); }
Currently, the hid-steam module needs to maintain hid resources by itself. Consider using devm_hid_hw_start_and_open helper to ensure that hid resources are consistent with the device life cycle, and release hid resources before device is released. At the same time, it can avoid the goto-release encoding, drop the err_hw_close and err_hw_stop lables. Signed-off-by: Li Zetao <lizetao1@huawei.com> --- drivers/hid/hid-steam.c | 18 ++---------------- 1 file changed, 2 insertions(+), 16 deletions(-)