diff options
| -rw-r--r-- | backends/tpm/tpm_emulator.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/backends/tpm/tpm_emulator.c b/backends/tpm/tpm_emulator.c index 9605339f93..a9b0f55e67 100644 --- a/backends/tpm/tpm_emulator.c +++ b/backends/tpm/tpm_emulator.c @@ -549,27 +549,30 @@ err_exit: static int tpm_emulator_handle_device_opts(TPMEmulator *tpm_emu, QemuOpts *opts) { const char *value; + Error *err = NULL; + Chardev *dev; value = qemu_opt_get(opts, "chardev"); - if (value) { - Error *err = NULL; - Chardev *dev = qemu_chr_find(value); - - if (!dev) { - error_report("tpm-emulator: tpm chardev '%s' not found.", value); - goto err; - } + if (!value) { + error_report("tpm-emulator: parameter 'chardev' is missing"); + goto err; + } - if (!qemu_chr_fe_init(&tpm_emu->ctrl_chr, dev, &err)) { - error_prepend(&err, "tpm-emulator: No valid chardev found at '%s':", - value); - error_report_err(err); - goto err; - } + dev = qemu_chr_find(value); + if (!dev) { + error_report("tpm-emulator: tpm chardev '%s' not found", value); + goto err; + } - tpm_emu->options->chardev = g_strdup(value); + if (!qemu_chr_fe_init(&tpm_emu->ctrl_chr, dev, &err)) { + error_prepend(&err, "tpm-emulator: No valid chardev found at '%s':", + value); + error_report_err(err); + goto err; } + tpm_emu->options->chardev = g_strdup(value); + if (tpm_emulator_prepare_data_fd(tpm_emu) < 0) { goto err; } @@ -925,6 +928,11 @@ static void tpm_emulator_shutdown(TPMEmulator *tpm_emu) { ptm_res res; + if (!tpm_emu->options->chardev) { + /* was never properly initialized */ + return; + } + if (tpm_emulator_ctrlcmd(tpm_emu, CMD_SHUTDOWN, &res, 0, sizeof(res)) < 0) { error_report("tpm-emulator: Could not cleanly shutdown the TPM: %s", strerror(errno)); |