Rafael, On 12/7/2017 8:00 AM, Rafael J. Wysocki wrote: >> Just don't use devm_request_threaded_irq()? :) >> >> Seriously, those are just "helper" functions if your code happens to >> follow the pattern they provide, if not, then don't use them, it's not >> that hard to provide the correct code to unwind things properly by "open >> coding" this logic as needed. >> >> The devm_*irq() functions are known for not being able to be used all of >> the time for lots of shutdown and cleanup issues, this isn't the first >> time it has happened, which is why we are very careful when taking >> "cleanup" patches that use those functions. > I see, thanks for the clarification. > > OK, we'll need to rework the driver somewhat, then. Even if we got rid of devm_*irq() functions, I see that the free_irq() function requires dev_id argument. * There can be multiple actions per IRQ descriptor, find the right * one based on the dev_id: I still need to keep track of the dev_ids attached to request_irq() functions. My take away from the discussion is: 1. don't use devm family of functions for IRQ registration/free 2. still keep track of the events 3. call free_irq on shutdown. Do you have something else on your mind? Sinan -- Sinan Kaya Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project. -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
