# Re: \[PATCH 2/2\] powerpc/usb: fix bug of CPU hang when missing USB PHY clock

- From: Kumar Gala \<hidden\>
- Date: 2012-08-10 13:51:32 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2012/08/9470773
- Thread: https://ratatoskr.run/linuxppc-dev/2012/08/9470760/t.md

```text

On Aug 10, 2012, at 5:48 AM, Shengzhou Liu wrote:

> when missing USB PHY clock, kernel booting up will hang during USB
> initialization. We should check USBGP[PHY_CLK_VALID] bit to avoid
> CPU hanging in this case.
>=20
> Signed-off-by: Shengzhou Liu <redacted>
> ---
> drivers/usb/host/ehci-fsl.c |   63 =
++++++++++++++++++++++++++++++------------
> drivers/usb/host/ehci-fsl.h |    1 +
> 2 files changed, 46 insertions(+), 18 deletions(-)

I assume this should be considered a bug fix and be looked at for =
inclusion in v3.6?

- k=
```