diff options
| author | Simon Glass | 2020-04-08 16:57:25 -0600 |
|---|---|---|
| committer | Bin Meng | 2020-04-16 14:36:28 +0800 |
| commit | 88307654af35fd550324fc1d8504db0da7225950 (patch) | |
| tree | 1727529c41ef6c56a05a81bce48104277756e95d | |
| parent | 32e8ee004a3dad1a9cc06bd3ac44d8ba562afc3e (diff) | |
tpm: Don't cleanup unless an error happens
At present the cleanup() method is called on every transfer. It should
only be called on failing transfers. Fix this and tidy up the error
handling a little.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
| -rw-r--r-- | drivers/tpm/tpm-uclass.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/tpm/tpm-uclass.c b/drivers/tpm/tpm-uclass.c index 1b11c93194d..71d58070062 100644 --- a/drivers/tpm/tpm-uclass.c +++ b/drivers/tpm/tpm-uclass.c @@ -72,7 +72,7 @@ int tpm_xfer(struct udevice *dev, const uint8_t *sendbuf, size_t send_size, struct tpm_ops *ops = tpm_get_ops(dev); ulong start, stop; uint count, ordinal; - int ret, ret2; + int ret, ret2 = 0; if (ops->xfer) return ops->xfer(dev, sendbuf, send_size, recvbuf, recv_size); @@ -120,9 +120,16 @@ int tpm_xfer(struct udevice *dev, const uint8_t *sendbuf, size_t send_size, } } while (ret); - ret2 = ops->cleanup ? ops->cleanup(dev) : 0; + if (ret) { + if (ops->cleanup) { + ret2 = ops->cleanup(dev); + if (ret2) + return log_msg_ret("cleanup", ret2); + } + return log_msg_ret("xfer", ret); + } - return ret2 ? ret2 : ret; + return 0; } UCLASS_DRIVER(tpm) = { |