diff mbox series

rom c17b1cc4b07370e504cc0ca4ce4af560a83d5977 Mon Sep 17 00:00:00 2001

Message ID 1550236979-15658-1-git-send-email-liam.merwick@oracle.com (mailing list archive)
State New, archived
Headers show
Series rom c17b1cc4b07370e504cc0ca4ce4af560a83d5977 Mon Sep 17 00:00:00 2001 | expand

Commit Message

Liam Merwick Feb. 15, 2019, 1:22 p.m. UTC 
In tpm_tis_mmio_write() if the requesting locality is seizing
access, any seizure by a lower locality is cancelled.  However the
loop doing the seizure had an off-by-one error and the locality
immediately preceding the requesting locality was not being cleared.
This is fixed by adjusting the test in the for loop to check the
localities up to the requesting locality.

Signed-off-by: Liam Merwick <Liam.Merwick@oracle.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
---
 hw/tpm/tpm_tis.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index fd6bb9b59a96..61a130beef35 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -624,7 +624,7 @@  static void tpm_tis_mmio_write(void *opaque, hwaddr addr,
                 }
 
                 /* cancel any seize by a lower locality */
-                for (l = 0; l < locty - 1; l++) {
+                for (l = 0; l < locty; l++) {
                     s->loc[l].access &= ~TPM_TIS_ACCESS_SEIZE;
                 }