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virtio-devices: mem: Report error instead of panic

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Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen 2022-10-13 11:43:18 -07:00 committed by Rob Bradford
parent 58066e2da4
commit 0235ed3388
1 changed files with 3 additions and 1 deletions
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4
virtio-devices/src/mem.rs
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@ -139,6 +139,8 @@ pub enum Error {
NotActivatedByGuest,
#[error("Unknown request type: {0}")]
UnkownRequestType(u16),
#[error("Failed adding used index: {0}")]
QueueAddUsed(virtio_queue::Error),
}
#[repr(C)]
@ -614,7 +616,7 @@ impl MemEpollHandler {
let len = r.send_response(desc_chain.memory(), resp_type, resp_state)?;
self.queue
.add_used(desc_chain.memory(), desc_chain.head_index(), len)
.unwrap();
.map_err(Error::QueueAddUsed)?;
used_descs = true;
}