Dima Zavin 566cf5b6e3
Input: evdev - only allow reading events if a full packet is present ...
Without this, it was possible for the reader to get ahead of packet_head.
If the input device generated a partial packet *right* after the reader
got ahead, then we can get into a situation where the device is marked
readable, but read always returns 0 until the next packet is finished
(i.e a SYN is generated by the input driver).
This situation can also happen if we overflow the buffer while a reader
is trying to read an event out.
Signed-off-by: Dima Zavin <dima@android.com >
Signed-off-by: Dmitry Torokhov <dtor@mail.ru >
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Dima Zavin
566cf5b6e3