QemuOpts: Convert qemu_opt_set_number() to Error, fix its use

Return the Error object instead of reporting it with
qerror_report_err().

Change callers that assume the function can't fail to pass
&error_abort, so that should the assumption ever break, it'll break
noisily.

Turns out all callers outside its unit test assume that.  We could
drop the Error ** argument, but that would make the interface less
regular, so don't.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/block/qcow2.c b/block/qcow2.c
index 2ed8d95b1f..772087420f 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1858,7 +1858,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,
         meta_size += nreftablee * sizeof(uint64_t);
 
         qemu_opt_set_number(opts, BLOCK_OPT_SIZE,
-                            aligned_total_size + meta_size);
+                            aligned_total_size + meta_size, &error_abort);
         qemu_opt_set(opts, BLOCK_OPT_PREALLOC, PreallocMode_lookup[prealloc]);
     }