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USB: serial: io_edgeport: fix epic-descriptor handling
authorJohan Hovold <johan@kernel.org>
Thu, 12 Jan 2017 13:56:13 +0000 (14:56 +0100)
committerBen Hutchings <ben@decadent.org.uk>
Mon, 5 Jun 2017 20:13:42 +0000 (21:13 +0100)
commit e4457d9798adb96272468e93da663de9bd0a4198 upstream.

Use a dedicated buffer for the DMA transfer and make sure to detect
short transfers to avoid parsing a corrupt descriptor.

Fixes: 6e8cf7751f9f ("USB: add EPIC support to the io_edgeport driver")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/usb/serial/io_edgeport.c patch | blob | history

diff --cc drivers/usb/serial/io_edgeport.c
Simple merge
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