On Thu, Dec 22, 2022 at 02:26:45AM +0000, Matthias Kaehlcke wrote:
Some boards with an onboard USB hub supported by the onboard_hub driver have a device tree node for the hub, but the node doesn't specify all properties needed by the driver (which is not a DT error per se). For such a hub no onboard_hub platform device is created. However the USB portion of the onboard hub driver still probes and uses _find_onboard_hub() to find the platform device that corresponds to the hub. If the DT node of the hub doesn't have an associated platform device the function looks for a "peer-hub" node (to get the platform device from there), if that doesn't exist either it logs an error and returns -EINVAL.
The absence of a platform device is expected in some configurations, so drop the error log and fail silently with -ENODEV.
Fixes: 8bc063641ceb ("usb: misc: Add onboard_usb_hub driver") Signed-off-by: Matthias Kaehlcke mka@chromium.org
Changes in v2:
- patch added to the series
drivers/usb/misc/onboard_usb_hub.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
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This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly.
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