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USB: serial: fix TIOCMIWAIT return value
authorJohan Hovold <jhovold@gmail.com>
Wed, 5 Jun 2013 10:21:11 +0000 (12:21 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 5 Jun 2013 15:34:42 +0000 (08:34 -0700)
Fix regression introduced by commit 143d9d9616 ("USB: serial: add
tiocmiwait subdriver operation") which made the ioctl operation return
ENODEV rather than ENOIOCTLCMD when a subdriver TIOCMIWAIT
implementation is missing.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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