virtiofsd: Fix check of chown()'s return value
Otherwise you always get this warning when using --socket-group=users
vhost socket failed to set group to users (100)
While here, print out the error if chown() fails.
Fixes:
f6698f2b03b0 ("tools/virtiofsd: add support for --socket-group")
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <
162040394890.714971.
15502455176528384778.stgit@bahia.lan>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>