fix crash - segment fault when partialFile.Allocated() is invoked. #3447
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When openPartialFile is invoked, more errors than "existed error" are returned. If only existing error is checked, the allocated field of partialFile may be nil. Signed-off-by: Star.LI <[email protected]>
schomatis
approved these changes
Sep 1, 2020
| @@ -371,7 +371,7 @@ func (sb *Sealer) ReadPiece(ctx context.Context, writer io.Writer, sector abi.Se | |||
| maxPieceSize := abi.PaddedPieceSize(sb.ssize) | |||
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| pf, err := openPartialFile(maxPieceSize, path.Unsealed) | |||
| if xerrors.Is(err, os.ErrNotExist) { | |||
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This was probably meant to ignore some particular error but agree that we should list it explicitly and otherwise error out by default.
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When openPartialFile is invoked, more errors than "existed error" are
returned. If only existing error is checked, the allocated field of
partialFile may be nil.
Signed-off-by: Star.LI [email protected]