Messages in this thread | | | Date | Thu, 14 Jan 2021 08:54:54 +0800 | From | Peter Chen <> | Subject | Re: Infinite recursion in device_reorder_to_tail() due to circular device links |
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On 21-01-13 12:18:35, Stephan Gerhold wrote: > > Also, on a completely different note I looked again at the chipidea USB > driver that produces this situation. To request the PHY (which ends up > in the circular device link) it does: > > /* Look for a generic PHY first */ > ci->phy = devm_phy_get(dev->parent, "usb-phy"); > > To me it doesn't really seem great to use the devm_* helpers on the > parent device either, so I will check if I can refactor this somehow. > Perhaps this situation can be prevented entirely. >
Hi Stephan,
You could try to get the PHY at parent driver (drivers/usb/chipidea/ci_hdrc_msm.c) to see the difference.
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Thanks, Peter Chen
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