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qcow: Fix map_err losing the inner error

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Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2020-01-24 08:37:57 +01:00
parent 06396593c9
commit cf25bd74b0
1 changed files with 6 additions and 1 deletions
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7
qcow/src/qcow.rs
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@ -1221,7 +1221,12 @@ impl QcowFile {
let refcount = self
.refcounts
.get_cluster_refcount(&mut self.raw_file, cluster_addr)
.map_err(|_| std::io::Error::from_raw_os_error(EINVAL))?;
.map_err(|e| {
io::Error::new(
io::ErrorKind::InvalidData,
format!("failed to get cluster refcount: {}", e),
)
})?;
if refcount == 0 {
return Err(std::io::Error::from_raw_os_error(EINVAL));
}