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(parent: 00877d1) | patch
USB: serial: cp210x: fix tiocmget error handling
authorJohan Hovold <johan@kernel.org>
Wed, 19 Oct 2016 13:45:07 +0000 (15:45 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 10 Nov 2016 15:36:34 +0000 (16:36 +0100)
commitf49f9df84eb20cefbb3b354fa755ebf056613568
treebfb32f05bd7e896ea41fc30590dd60ef92d4fdbetree | snapshot
parent00877d139396a19d8fdd5ccfd5ec627f64ac052bcommit | diff
USB: serial: cp210x: fix tiocmget error handling

commit de24e0a108bc48062e1c7acaa97014bce32a919f upstream.

The current tiocmget implementation would fail to report errors up the
stack and instead leaked a few bits from the stack as a mask of
modem-status flags.

Fixes: 39a66b8d22a3 ("[PATCH] USB: CP2101 Add support for flow control")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/cp210x.c diff | blob | history
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