n_tty: honor opost flag for echoes
Fixes the following bug: http://bugs.linuxbase.org/show_bug.cgi?id=2692 Causes processing of echoed characters (output from the echo buffer) to honor the O_OPOST flag, which is consistent with the old behavior. Note that this and the next patch ("n_tty: move echoctl check and clean up logic") were verified together by the bug reporters, and the test now passes. Signed-off-by: NJoe Peterson <joe@skyrush.com> Cc: Linux Torvalds <torvalds@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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