On 6/4/24 13:23, Jarkko Sakkinen wrote:
On Fri May 31, 2024 at 3:35 AM EEST, Stefan Berger wrote:
- rc = tpm2_key_decode(payload, options, &blob);
- if (rc) {
- /* old form */
+ key = tpm2_key_decode(payload->blob, payload->blob_len);
+ if (IS_ERR(key)) {
+ /* Get the error code and reset the pointer to the key: */
+ rc = PTR_ERR(key);
+ key = NULL;
+
+ if (rc == -ENOMEM)
+ return -ENOMEM;
+
+ /* A sanity check, as only -EBADMSG or -ENOMEM are expected: */
+ if (rc != -EBADMSG)
+ pr_err("tpm2_key_decode(): spurious error code %d\n", rc);
tpm2_key_decode seems simple enough that it only returns key, -ENOMEM or
EBADMSG.
So what is your suggestion here?
You can remove the check resuling in pr_err().
The reasoning here is that asymmetric keys use -EBADMSG not only as
error but also iterator, when probing which can load a specific key.
