tpm-buf: Implement managed allocations
Decouple kzalloc from buffer creation, so that a managed allocation can be
used:
struct tpm_buf *buf __free(kfree) buf = kzalloc(TPM_BUFSIZE,
GFP_KERNEL);
if (!buf)
return -ENOMEM;
tpm_buf_init(buf, TPM_BUFSIZE);
Alternatively, stack allocations are also possible:
u8 buf_data[512];
struct tpm_buf *buf = (struct tpm_buf *)buf_data;
tpm_buf_init(buf, sizeof(buf_data));
This is achieved by embedding buffer's header inside the allocated blob,
instead of having an outer wrapper.
Cc: Ross Philipson <ross.philipson@oracle.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@opinsys.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
12 files changed
