qga/vss-win32: pass character count instead of byte count to volume APIs

FindFirstVolumeW, FindNextVolumeW and GetVolumePathNamesForVolumeNameW
expect a buffer length in characters, not bytes.

Use ARRAYSIZE() to pass the correct character count.

Fixes: b39297aedfab ("qemu-ga: Add Windows VSS provider and requester as DLL")
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Kostiantyn Kostiuk <kkostiuk@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260907-qga-v1-6-86456ad356e2@redhat.com
Signed-off-by: Kostiantyn Kostiuk <kkostiuk@redhat.com>
1 file changed