USB: serial: io_edgeport: fix descriptor error handling

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commit 3c0e25d883 upstream.

Make sure to detect short control-message transfers and log an error
when reading incomplete manufacturer and boot descriptors.

Note that the default all-zero descriptors will now be used after a
short transfer is detected instead of partially initialised ones.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Johan Hovold 2017-01-12 14:56:14 +01:00 • committed by Greg Kroah-Hartman

parent 62b8b773eb

commit 6fa44d4ba2

1 changed files with 15 additions and 9 deletions

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drivers/usb/serial/io_edgeport.c

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