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(parent: 427c3a9) | patch
USB: serial: ftdi_sio: fix latency-timer error handling
authorJohan Hovold <johan@kernel.org>
Thu, 12 Jan 2017 13:56:12 +0000 (14:56 +0100)
committerJohan Hovold <johan@kernel.org>
Mon, 16 Jan 2017 15:38:55 +0000 (16:38 +0100)
commite3e574ad85a208cb179f33720bb5f12b453de33c
tree0e59dd12fad710a7eec5403a548915dd03e96cd1tree | snapshot (tar.gz zip)
parent427c3a95e3e29e65f59d99aaf320d7506f3eed57commit | diff
USB: serial: ftdi_sio: fix latency-timer error handling

Make sure to detect short responses when reading the latency timer to
avoid using stale buffer data.

Note that no heap data would currently leak through sysfs as
ASYNC_LOW_LATENCY is set by default.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/ftdi_sio.c diff | blob | blame | history