[Qemu-devel] [PATCH v3 for-2.11 3/3] tpm_tis: Return 0 for every register in case of failure mode

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

Rather than returning ~0, return 0 for every register in case of
failure mode. The '0' is better to indicate that there's no device
there.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
---
 hw/tpm/tpm_tis.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index fec2fc6..42d647d 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -545,7 +545,7 @@ static uint64_t tpm_tis_mmio_read(void *opaque, hwaddr addr,
     uint8_t v;
 
     if (tpm_backend_had_startup_error(s->be_driver)) {
-        return val;
+        return 0;
     }
 
     switch (offset) {
-- 
2.5.5