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USB: cdc-acm: only raise DTR on transitions from B0
authorJohan Hovold <johan@kernel.org>
Wed, 5 Nov 2014 17:41:59 +0000 (18:41 +0100)
committerBen Hutchings <ben@decadent.org.uk>
Sun, 14 Dec 2014 16:23:55 +0000 (16:23 +0000)
commitae11f62aeb3b9cd5222309a48611d475dad974ed
tree38e4e7b146980359431f7c759fd06584fe0abb92tree | snapshot
parentb05ff47c7d4144c168553fc297bc25751e9e2525commit | diff
USB: cdc-acm: only raise DTR on transitions from B0

commit 4473d054ceb572557954f9536731d39b20937b0c upstream.

Make sure to only raise DTR on transitions from B0 in set_termios.

Also allow set_termios to be called from open with a termios_old of
NULL. Note that DTR will not be raised prematurely in this case.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/usb/class/cdc-acm.c diff | blob | history
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