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Wysocki" , Danilo Krummrich , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno Cc: Alan Stern , Chen-Yu Tsai , linux-acpi@vger.kernel.org, driver-core@lists.linux.dev, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH v2 04/16] usb: hub: Return actual error from hub_configure() in hub_probe() Date: Wed, 10 Jun 2026 16:40:38 +0800 Message-ID: <20260610084053.2059858-5-wenst@chromium.org> X-Mailer: git-send-email 2.54.0.1099.g489fc7bff1-goog In-Reply-To: <20260610084053.2059858-1-wenst@chromium.org> References: <20260610084053.2059858-1-wenst@chromium.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The addition of power sequencing descriptor handling in the USB hub code requires dealing with deferred probing from pwrseq_get(). The power sequencing provider may not yet be available when the USB hub probes. Return the actual error code from hub_configure() when it fails, so that the driver core can notice the deferred probe request. Signed-off-by: Chen-Yu Tsai --- Changes since v1: - Moved "int ret" declaration in hub_configure() over here from the next patch --- drivers/usb/core/hub.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 13264e86bc6d..985551d013b2 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1874,6 +1874,7 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) struct usb_host_interface *desc; struct usb_device *hdev; struct usb_hub *hub; + int ret; desc = intf->cur_altsetting; hdev = interface_to_usbdev(intf); @@ -2005,14 +2006,15 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) usb_set_interface(hdev, 0, 0); } - if (hub_configure(hub, &desc->endpoint[0].desc) >= 0) { + ret = hub_configure(hub, &desc->endpoint[0].desc); + if (ret >= 0) { onboard_dev_create_pdevs(hdev, &hub->onboard_devs); return 0; } hub_disconnect(intf); - return -ENODEV; + return ret; } static int -- 2.54.0.1099.g489fc7bff1-goog