On Mon, Oct 24, 2016 at 08:54:39AM -0700, Josh Zimmerman wrote:
> If the TPM we're connecting to uses a static burst count, it will report
> a burst count of zero throughout the response read. However, get_burstcount
> assumes that a response of zero indicates that the TPM is not ready to
> receive more data. In this case, it returns a negative error code, which
> is passed on to tpm_tis_{write,read}_bytes as a u16, causing
> them to read/write far too many bytes.
>
> This patch checks for negative return codes and bails out from recv_data
> and tpm_tis_send_data.
>
> Fixes: 1107d065fdf1
huh?
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