Hi, (first of all, your subject could be a little more descriptive, something like: usb: gadget: mv_u3d: request_irq() after initializing UDC as that would better detail what you're doing) Nadezda Lutovinova <lutovinova@xxxxxxxxx> writes: > If IRQ occurs between calling request_irq() and mv_u3d_eps_init(), > then null pointer dereference occurs since u3d->eps[] wasn't > initialized yet but used in mv_u3d_nuke(). > > The patch puts registration of the interrupt handler after > initializing of neccesery data. > > Found by Linux Driver Verification project (linuxtesting.org). this looks like an important bug fix, it probably deserves a stable tag here. Which commit introduce this problem? Otherr than that, commits looks good. -- balbi