K 10
svn:author
V 2
ed
K 8
svn:date
V 27
2012-10-03T13:51:03.439026Z
K 7
svn:log
V 300
Fix faulty error code handling in read(2) on TTYs.

When performing a non-blocking read(2), on a TTY while no data is
available, we should return EAGAIN. But if there's a modem disconnect,
we should return 0. Right now we only return 0 when doing a blocking
read, which is wrong.

MFC after:	1 month

END