staging: unisys: visorchannel_create_guts(): Use visorchannel_read()

There is no benefit to calling visor_memregion_read() at this point.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/visorchannel.c

@@ -78,8 +78,8 @@ visorchannel_create_guts(HOSTADDRESS physaddr, ulong channel_bytes,
 	channel->memregion.physaddr = physaddr;
 	channel->memregion.nbytes = size;
 
-	err = visor_memregion_read(&channel->memregion, 0, &channel->chan_hdr,
-				   sizeof(struct channel_header));
+	err = visorchannel_read(channel, 0, &channel->chan_hdr,
+				sizeof(struct channel_header));
 	if (err)
 		goto cleanup;