Re: [PATCH] tpm: handle negative priv->response_len in tpm_common_read

On Tue, 2020-01-07 at 14:04 -0800, Tadeusz Struk wrote:

The priv->responce_length can hold the size of an response or an negative error code, and the tpm_common_read() needs to handle both cases correctly. Changed the type of responce_length to signed and accounted for negative value in tpm_common_read()

Cc: stable@vger.kernel.org Fixes: d23d12484307 ("tpm: fix invalid locking in NONBLOCKING mode") Reported-by: Laura Abbott labbott@redhat.com Signed-off-by: Tadeusz Struk tadeusz.struk@intel.com

Reviewed-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com

Adding to the next PR.

/Jarkko