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-rw-r--r--drivers/char/tpm/tpm-dev-common.c2
-rw-r--r--drivers/char/tpm/tpm2-space.c3
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-dev-common.c b/drivers/char/tpm/tpm-dev-common.c
index 30b4c288c1bb..c3fbbf4d3db7 100644
--- a/drivers/char/tpm/tpm-dev-common.c
+++ b/drivers/char/tpm/tpm-dev-common.c
@@ -47,6 +47,8 @@ static ssize_t tpm_dev_transmit(struct tpm_chip *chip, struct tpm_space *space,
if (!ret)
ret = tpm2_commit_space(chip, space, buf, &len);
+ else
+ tpm2_flush_space(chip);
out_rc:
return ret ? ret : len;
diff --git a/drivers/char/tpm/tpm2-space.c b/drivers/char/tpm/tpm2-space.c
index 4892d491da8d..25a66870c165 100644
--- a/drivers/char/tpm/tpm2-space.c
+++ b/drivers/char/tpm/tpm2-space.c
@@ -169,6 +169,9 @@ void tpm2_flush_space(struct tpm_chip *chip)
struct tpm_space *space = &chip->work_space;
int i;
+ if (!space)
+ return;
+
for (i = 0; i < ARRAY_SIZE(space->context_tbl); i++)
if (space->context_tbl[i] && ~space->context_tbl[i])
tpm2_flush_context(chip, space->context_tbl[i]);