tpm: sandbox: Change the return code when device is already open
All the TPM drivers as well as out TCG TIS API for a TPM2.0 device
return -EBUSY if the device has already been opened. Adjust
the sandbox TPM do return the same error code.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/drivers/tpm/tpm2_tis_sandbox.c b/drivers/tpm/tpm2_tis_sandbox.c
index dd94bdc..e4004cf 100644
--- a/drivers/tpm/tpm2_tis_sandbox.c
+++ b/drivers/tpm/tpm2_tis_sandbox.c
@@ -810,7 +810,7 @@
struct sandbox_tpm2 *tpm = dev_get_priv(dev);
if (tpm->init_done)
- return -EIO;
+ return -EBUSY;
tpm->init_done = true;