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devices: simplify TPM handling

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The error is never propagated anywhere. Drop it.

Avoid unwrapping unconditionally.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu 2023-01-25 17:36:33 +00:00 committed by Rob Bradford
parent 15ace525be
commit 2b76e1d7ba
1 changed files with 6 additions and 11 deletions
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13
devices/src/tpm.rs
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@ -22,8 +22,6 @@ pub enum Error {
CheckCaps(#[source] anyhow::Error), CheckCaps(#[source] anyhow::Error),
#[error("Failed to initialize tpm: {0}")] #[error("Failed to initialize tpm: {0}")]
Init(#[source] anyhow::Error), Init(#[source] anyhow::Error),
#[error("Failed to deliver tpm Command: {0}")]
DeliverRequest(#[source] anyhow::Error),
} }
type Result<T> = anyhow::Result<T, Error>; type Result<T> = anyhow::Result<T, Error>;
@ -483,15 +481,12 @@ impl BusDevice for Tpm {
}; };
let mut cmd = cmd.clone(); let mut cmd = cmd.clone();
let output = self.emulator.deliver_request(&mut cmd).map_err(|e| {
Error::DeliverRequest(anyhow!( if let Ok(output) = self.emulator.deliver_request(&mut cmd) {
"Failed to deliver tpm request. Error :{:?}",
e
))
});
// TODO: drop the copy here // TODO: drop the copy here
self.data_buff.fill(0); self.data_buff.fill(0);
self.data_buff.clone_from_slice(output.unwrap().as_slice()); self.data_buff.clone_from_slice(output.as_slice());
}
self.request_completed(TPM_SUCCESS as isize); self.request_completed(TPM_SUCCESS as isize);
} }