vdpa: propagate error from cmd_dev_vstats_show()

Error potentially returned from mnlu_gen_socket_sndrcv() are propagated
for each and every invocation in vdpa. Let's do the same here.

Fixes: 6f97e9c9337b ("vdpa: Add support for reading vdpa device statistics")
Signed-off-by: Andrea Claudi <aclaudi@redhat.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
1 file changed