Hi Greg, On Wed, Sep 11, 2024, Greg KH wrote: > On Mon, Jul 15, 2024 at 10:58:27AM +0800, Kyle Tso wrote: > > It is possible that the usb power_supply is registered after the probe > > of dwc3. In this case, trying to get the usb power_supply during the > > probe will fail and there is no chance to try again. Also the usb > > power_supply might be unregistered at anytime so that the handle of it > > in dwc3 would become invalid. To fix this, get the handle right before > > calling to power_supply functions and put it afterward. > > > > Fixes: 6f0764b5adea ("usb: dwc3: add a power supply for current control") > > Cc: stable@xxxxxxxxxxxxxxx > > Signed-off-by: Kyle Tso <kyletso@xxxxxxxxxx> > > --- > > drivers/usb/dwc3/core.c | 25 +++++-------------------- > > drivers/usb/dwc3/core.h | 4 ++-- > > drivers/usb/dwc3/gadget.c | 19 ++++++++++++++----- > > 3 files changed, 21 insertions(+), 27 deletions(-) > > Did this get lost somewhere? You might need to resend it now that Thinh > is back from vacation. > You're looking at the outdated patch. Here's where we left off from the last discussion on v3 of this: https://lore.kernel.org/linux-usb/20240810005634.6ig2e3hdsgx3wkan@xxxxxxxxxxxx/#t BR, Thinh