[Qemu-devel] [PATCH for-3.1.1 1/2] tpm: Exit in reset when backend indicates failure

[Stefan Berger <stefanb@linux.vnet.ibm.com>]

Exit() in the frontend reset function when the backend indicates
intialization failure.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
(git cherry-pick bcfd16fe26d6bb6eabfd2dfb46b9fda59d5493db)
---
 hw/tpm/tpm_crb.c | 4 +++-
 hw/tpm/tpm_tis.c | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/hw/tpm/tpm_crb.c b/hw/tpm/tpm_crb.c
index a92dd50437..e062f597f9 100644
--- a/hw/tpm/tpm_crb.c
+++ b/hw/tpm/tpm_crb.c
@@ -265,7 +265,9 @@ static void tpm_crb_reset(void *dev)
     s->be_buffer_size = MIN(tpm_backend_get_buffer_size(s->tpmbe),
                             CRB_CTRL_CMD_SIZE);
 
-    tpm_backend_startup_tpm(s->tpmbe, s->be_buffer_size);
+    if (tpm_backend_startup_tpm(s->tpmbe, s->be_buffer_size) < 0) {
+        exit(1);
+    }
 }
 
 static void tpm_crb_realize(DeviceState *dev, Error **errp)
diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index d9322692ee..5c218fc7fc 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -891,7 +891,9 @@ static void tpm_tis_reset(DeviceState *dev)
         s->rw_offset = 0;
     }
 
-    tpm_backend_startup_tpm(s->be_driver, s->be_buffer_size);
+    if (tpm_backend_startup_tpm(s->be_driver, s->be_buffer_size) < 0) {
+        exit(1);
+    }
 }
 
 /* persistent state handling */
-- 
2.20.1