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| author | Stefan Berger <stefanb@linux.vnet.ibm.com> | 2017-11-10 22:33:14 -0500 |
|---|---|---|
| committer | Stefan Berger <Stefan Berger stefanb@linux.vnet.ibm.com> | 2017-11-15 06:47:35 -0500 |
| commit | 6cd65969da57eaa9bdff07b80ecca2becce0597a (patch) | |
| tree | 9d685a4ded3ddbe6a634f2adb31b51673f889f35 /hw | |
| parent | ad4aca69bbd40663ca93a3eb1d8042c023b9b407 (diff) | |
| download | qemu-6cd65969da57eaa9bdff07b80ecca2becce0597a.tar.gz | |
tpm_tis: Return 0 for every register in case of failure mode
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. It avoids
SeaBIOS detecting a device and getting stuck on it trying to read and write
its registers.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/tpm/tpm_tis.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c index fec2fc617a..42d647d363 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) { |