diff options
Diffstat (limited to 'drivers/char/tpm/tpm_vtpm_proxy.c')
| -rw-r--r-- | drivers/char/tpm/tpm_vtpm_proxy.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/char/tpm/tpm_vtpm_proxy.c b/drivers/char/tpm/tpm_vtpm_proxy.c index 3d6f6ca81def..5463b58af26e 100644 --- a/drivers/char/tpm/tpm_vtpm_proxy.c +++ b/drivers/char/tpm/tpm_vtpm_proxy.c @@ -42,6 +42,7 @@ struct proxy_dev { long state; /* internal state */ #define STATE_OPENED_FLAG BIT(0) #define STATE_WAIT_RESPONSE_FLAG BIT(1) /* waiting for emulator response */ +#define STATE_REGISTERED_FLAG BIT(2) size_t req_len; /* length of queued TPM request */ size_t resp_len; /* length of queued TPM response */ @@ -370,12 +371,9 @@ static void vtpm_proxy_work(struct work_struct *work) rc = tpm_chip_register(proxy_dev->chip); if (rc) - goto err; - - return; - -err: - vtpm_proxy_fops_undo_open(proxy_dev); + vtpm_proxy_fops_undo_open(proxy_dev); + else + proxy_dev->state |= STATE_REGISTERED_FLAG; } /* @@ -516,7 +514,8 @@ static void vtpm_proxy_delete_device(struct proxy_dev *proxy_dev) */ vtpm_proxy_fops_undo_open(proxy_dev); - tpm_chip_unregister(proxy_dev->chip); + if (proxy_dev->state & STATE_REGISTERED_FLAG) + tpm_chip_unregister(proxy_dev->chip); vtpm_proxy_delete_proxy_dev(proxy_dev); } |