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| H A D | 9p.c | d1471233 Mon Jan 08 04:18:22 CST 2018 Greg Kurz <groug@kaod.org> 9pfs: fix error path in pdu_submit()
If we receive an unsupported request id, we first decide to
return -ENOTSUPP to the client, but since the request id
causes is_read_only_op() to return false, we change the
error to be -EROFS if the fsdev is read-only. This doesn't
make sense since we don't know what the client asked for.
This patch ensures that -EROFS can only be returned if the
request id is supported.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
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