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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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 5 Nov 2014 19:25:25 +0000 (11:25 -0800)
commit4473d054ceb572557954f9536731d39b20937b0c
tree0c49f80d520843b6371afb7bcce04db90f3e3f34tree | snapshot
parentac0225f94f2af14d5db5a3ca2e9b151bb5488a52commit | diff
USB: cdc-acm: only raise DTR on transitions from B0

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.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-acm.c diff | blob | history
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