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authorEric Blake <eblake@redhat.com>2017-08-09 15:38:05 -0500
committerKevin Wolf <kwolf@redhat.com>2017-09-04 18:33:00 +0200
commit56439e9d55626b65ecb887f1ac3714652555312e (patch)
tree03e2b0ad124882d070c0648aacd01dfb5e0fcc5a /fsdev
parentf7cc69b326850c34db5dca2f9f74898cd181f43a (diff)
qcow: Change signature of get_cluster_offset()
The old signature has an ambiguous meaning for a return of 0: either no allocation was requested or necessary, or an error occurred (but any errno associated with the error is lost to the caller, which then has to assume EIO). Better is to follow the example of qcow2, by changing the signature to have a separate return value that cleanly distinguishes between failure and success, along with a parameter that cleanly holds a 64-bit value. Then update all callers. While auditing that all return paths return a negative errno (rather than -1), I also simplified places where we can pass NULL rather than a local Error that just gets thrown away. Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'fsdev')
0 files changed, 0 insertions, 0 deletions