Hi pavel,
CHECK_OWNERSHIP in drivers/usb/input/hid-tmff.c tests for current->pid==0. The same code is used in several files (hid-lgff.c, usb/input/pid.c, drivers/input/joystick/iforce/iforce.h)
Do you know why? I don't understand the reason for the test.
There are two cases where current->pid is 0: for the idle thread(s) and historically for dead threads (not true anymore). current can't be dead and I don't think that it makes sense to check if current is an idle thread.
-- Manfred
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