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RFC USB: HCD/EHCI: giveback of URB in tasklet context

Oliver Neukum linux-arm-kernel 1 version New

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  1. v1 RFC Latest0 of 4 patches 0 repliesNew

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Cover letter [RFC PATCH 0/4] USB: HCD/EHCI: giveback of URB in tasklet context
Quoted 4 lines · On Tuesday 11 June 2013 15:10:03 Alan Stern wrote:

In order to prevent this from happening, you would have to change the spin_lock() call in the completion handler to spin_lock_irqsave(). Furthermore, you will have to audit every USB driver to make sure that all the completion handlers get fixed.

Yes. However, it can be done mechanically. And we know only the handlers for complete need to be fixed.

Regards
Oliver

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