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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-23 07:00:09 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-23 07:00:09 -0500 |
| commit | 398d999f96bf8e02573b0c7e32896c7812393bc0 (patch) | |
| tree | 839f1616cc205b9a74f07f7b571a603814446de6 /drivers/char/tpm/tpm-dev-common.c | |
| parent | staging: nvec: check return value (diff) | |
| parent | Linux 5.5-rc3 (diff) | |
| download | linux-dev-398d999f96bf8e02573b0c7e32896c7812393bc0.tar.xz linux-dev-398d999f96bf8e02573b0c7e32896c7812393bc0.zip | |
Merge 5.5-rc3 into staging-next
We need the staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/tpm/tpm-dev-common.c')
| -rw-r--r-- | drivers/char/tpm/tpm-dev-common.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-dev-common.c b/drivers/char/tpm/tpm-dev-common.c index 2ec47a69a2a6..b23b0b999232 100644 --- a/drivers/char/tpm/tpm-dev-common.c +++ b/drivers/char/tpm/tpm-dev-common.c @@ -61,6 +61,12 @@ static void tpm_dev_async_work(struct work_struct *work) mutex_lock(&priv->buffer_mutex); priv->command_enqueued = false; + ret = tpm_try_get_ops(priv->chip); + if (ret) { + priv->response_length = ret; + goto out; + } + ret = tpm_dev_transmit(priv->chip, priv->space, priv->data_buffer, sizeof(priv->data_buffer)); tpm_put_ops(priv->chip); @@ -68,6 +74,7 @@ static void tpm_dev_async_work(struct work_struct *work) priv->response_length = ret; mod_timer(&priv->user_read_timer, jiffies + (120 * HZ)); } +out: mutex_unlock(&priv->buffer_mutex); wake_up_interruptible(&priv->async_wait); } @@ -204,6 +211,7 @@ ssize_t tpm_common_write(struct file *file, const char __user *buf, if (file->f_flags & O_NONBLOCK) { priv->command_enqueued = true; queue_work(tpm_dev_wq, &priv->async_work); + tpm_put_ops(priv->chip); mutex_unlock(&priv->buffer_mutex); return size; } |