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evdev: return error rather than zero-length data on blocked read()

Description

evdev: return error rather than zero-length data on blocked read()

if blocked process has been woken up by evdev device destruction.

MFC after: 2 weeks

Details

Provenance
wulfAuthored on
Parents
rS359428: evdev: Add COMPAT_FREEBSD32 support for amd64 arch
Branches
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