| Message ID | 1490965817-16913-4-git-send-email-amarnath.valluri@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi On Fri, Mar 31, 2017 at 5:01 PM Amarnath Valluri <amarnath.valluri@intel.com> wrote: > Initialize and free TPMBackend data members in it's own instance_init() and > instance_finalize methods. > > Took the opportunity to fix object cleanup in tpm_backend_destroy() method > > Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com> > --- > backends/tpm.c | 14 +++++++++++++- > hw/tpm/tpm_passthrough.c | 8 +------- > 2 files changed, 14 insertions(+), 8 deletions(-) > > diff --git a/backends/tpm.c b/backends/tpm.c > index 50a7809..00c82d7 100644 > --- a/backends/tpm.c > +++ b/backends/tpm.c > @@ -59,7 +59,7 @@ void tpm_backend_destroy(TPMBackend *s) > > k->ops->destroy(s); > > - tpm_backend_thread_end(s); > + object_unref(OBJECT(s)); > } > tpm_backend_destroy() wrapping object_unref().. I think we could do it the correct way instead, caller use object_unref() and implementation can use finalizers. > > int tpm_backend_init(TPMBackend *s, TPMState *state, > @@ -187,10 +187,20 @@ static void tpm_backend_prop_set_opened(Object *obj, > bool value, Error **errp) > > static void tpm_backend_instance_init(Object *obj) > { > + TPMBackend *s = TPM_BACKEND(obj); > + > object_property_add_bool(obj, "opened", > tpm_backend_prop_get_opened, > tpm_backend_prop_set_opened, > NULL); > + s->id = NULL; > + s->fe_model = -1; > + s->opened = false; > + s->tpm_state = NULL; > + s->thread_pool = NULL; > + s->recv_data_callback = NULL; > + s->path = NULL; > + s->cancel_path = NULL; > I don't see much point in initializing again those fields to 0, since object creation do it already. > > } > > @@ -199,6 +209,8 @@ static void tpm_backend_instance_finalize(Object *obj) > TPMBackend *s = TPM_BACKEND(obj); > > g_free(s->id); > + g_free(s->path); > + g_free(s->cancel_path); > tpm_backend_thread_end(s); > } > > diff --git a/hw/tpm/tpm_passthrough.c b/hw/tpm/tpm_passthrough.c > index 606e064..cb63079 100644 > --- a/hw/tpm/tpm_passthrough.c > +++ b/hw/tpm/tpm_passthrough.c > @@ -418,8 +418,6 @@ static TPMBackend *tpm_passthrough_create(QemuOpts > *opts, const char *id) > TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(tb); > > tb->id = g_strdup(id); > - /* let frontend set the fe_model to proper value */ > - tb->fe_model = -1; > > if (tpm_passthrough_handle_device_opts(opts, tb)) { > goto err_exit; > @@ -433,7 +431,7 @@ static TPMBackend *tpm_passthrough_create(QemuOpts > *opts, const char *id) > return tb; > > err_exit: > - g_free(tb->id); > + object_unref(obj); > ok, that's a leak fix > > return NULL; > } > @@ -446,10 +444,6 @@ static void tpm_passthrough_destroy(TPMBackend *tb) > > qemu_close(tpm_pt->tpm_fd); > qemu_close(tpm_pt->cancel_fd); > - > - g_free(tb->id); > - g_free(tb->path); > - g_free(tb->cancel_path); > g_free(tpm_pt->tpm_dev); > } > > -- > 2.7.4 > > > -- Marc-André Lureau
diff --git a/backends/tpm.c b/backends/tpm.c index 50a7809..00c82d7 100644 --- a/backends/tpm.c +++ b/backends/tpm.c @@ -59,7 +59,7 @@ void tpm_backend_destroy(TPMBackend *s) k->ops->destroy(s); - tpm_backend_thread_end(s); + object_unref(OBJECT(s)); } int tpm_backend_init(TPMBackend *s, TPMState *state, @@ -187,10 +187,20 @@ static void tpm_backend_prop_set_opened(Object *obj, bool value, Error **errp) static void tpm_backend_instance_init(Object *obj) { + TPMBackend *s = TPM_BACKEND(obj); + object_property_add_bool(obj, "opened", tpm_backend_prop_get_opened, tpm_backend_prop_set_opened, NULL); + s->id = NULL; + s->fe_model = -1; + s->opened = false; + s->tpm_state = NULL; + s->thread_pool = NULL; + s->recv_data_callback = NULL; + s->path = NULL; + s->cancel_path = NULL; } @@ -199,6 +209,8 @@ static void tpm_backend_instance_finalize(Object *obj) TPMBackend *s = TPM_BACKEND(obj); g_free(s->id); + g_free(s->path); + g_free(s->cancel_path); tpm_backend_thread_end(s); } diff --git a/hw/tpm/tpm_passthrough.c b/hw/tpm/tpm_passthrough.c index 606e064..cb63079 100644 --- a/hw/tpm/tpm_passthrough.c +++ b/hw/tpm/tpm_passthrough.c @@ -418,8 +418,6 @@ static TPMBackend *tpm_passthrough_create(QemuOpts *opts, const char *id) TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(tb); tb->id = g_strdup(id); - /* let frontend set the fe_model to proper value */ - tb->fe_model = -1; if (tpm_passthrough_handle_device_opts(opts, tb)) { goto err_exit; @@ -433,7 +431,7 @@ static TPMBackend *tpm_passthrough_create(QemuOpts *opts, const char *id) return tb; err_exit: - g_free(tb->id); + object_unref(obj); return NULL; } @@ -446,10 +444,6 @@ static void tpm_passthrough_destroy(TPMBackend *tb) qemu_close(tpm_pt->tpm_fd); qemu_close(tpm_pt->cancel_fd); - - g_free(tb->id); - g_free(tb->path); - g_free(tb->cancel_path); g_free(tpm_pt->tpm_dev); }
Initialize and free TPMBackend data members in it's own instance_init() and instance_finalize methods. Took the opportunity to fix object cleanup in tpm_backend_destroy() method Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com> --- backends/tpm.c | 14 +++++++++++++- hw/tpm/tpm_passthrough.c | 8 +------- 2 files changed, 14 insertions(+), 8 deletions(-)