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    Subject[ 049/117] USB: ffs-test: fix length argument of out function call
    3.2-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Matthias Fend <Matthias.Fend@wolfvision.net>

    commit eb9c5836384cd2a276254df6254ed71117983626 upstream.

    The out functions should only handle actual available data instead of the complete buffer.
    Otherwise for example the ep0_consume function will report ghost events since it tries to decode
    the complete buffer - which may contain partly invalid data.

    Signed-off-by: Matthias Fend <matthias.fend@wolfvision.net>
    Acked-by: Michal Nazarewicz <mina86@mina86.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    ---
    tools/usb/ffs-test.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/tools/usb/ffs-test.c b/tools/usb/ffs-test.c
    index 4b107b5..8674b9e 100644
    --- a/tools/usb/ffs-test.c
    +++ b/tools/usb/ffs-test.c
    @@ -297,7 +297,7 @@ static void *start_thread_helper(void *arg)

    ret = t->in(t, t->buf, t->buf_size);
    if (ret > 0) {
    - ret = t->out(t, t->buf, t->buf_size);
    + ret = t->out(t, t->buf, ret);
    name = out_name;
    op = "write";
    } else {



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