On Fri, 2019-05-03 at 14:39 +0000, David Laight wrote: > From: Philippe Schenker > > Sent: 03 May 2019 14:57 > > In some cases, the wait_completion got interrupted. This caused the > > error-handling to mutex_unlock the function. The before turned on > > interrupt then got called anyway. In the ISR then completion() > > was called causing problems. > > > > Making this wait_completion non interruptible solves the problem. > > Won't the same thing happen if the interrupt occurs just after > the timeout? > > David > > > - > Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, > UK > Registration No: 1397386 (Wales) > You're of course right... Thanks for pointing this out. I will send a v2 with a better solution then. Philippe