pixma: Log unsupported scanner type in BJNP and AXIS

backend/pixma/pixma_axis.c

@@ -491,7 +491,16 @@ add_scanner(int udp_socket, const char *uri,
       if (status == 1)
         snprintf(serial, sizeof(serial), "%s BUSY %s", inet_ntoa(addr.sin_addr), user);
       device[axis_no_devices++].addr = addr.sin_addr;
-      attach_axis(uri, devname, serial, pixma_devices);
+      switch (attach_axis(uri, devname, serial, pixma_devices))
+        {
+        case SANE_STATUS_GOOD:
+          break;
+        case SANE_STATUS_INVAL:
+          DBG(LOG_CRIT, "add_scanner: Scanner %s is not supported, model is unknown! Please report upstream\n", devname);
+          break;
+        default:
+          DBG(LOG_CRIT, "add_scanner: unexpected error (out of memory?)\n");
+        }
     }
 
   return 0;

backend/pixma/pixma_bjnp.c

@@ -1845,6 +1845,9 @@ static void add_scanner(SANE_Int *dev_no,
                  PDBG (bjnp_dbg (LOG_NOTICE, "add_scanner: New scanner added: %s, serial %s, mac address: %s.\n",
 	                         uri, serial, device[*dev_no].mac_address));
                  break;
+               case SANE_STATUS_INVAL:
+                 PDBG (bjnp_dbg (LOG_CRIT, "add_scanner: Scanner %s is not supported, model is unknown! Please report upstream\n", makemodel));
+                 break;
                default:
                  PDBG (bjnp_dbg (LOG_CRIT, "add_scanner: unexpected error (out of memory?), adding %s\n", makemodel));
             }

backend/pixma/pixma_io_sanei.c

@@ -178,10 +178,7 @@ attach_net (SANE_String_Const devname,  SANE_String_Const makemodel,
   if (!si->devname)
     return SANE_STATUS_NO_MEM;
   if ((cfg = lookup_scanner(makemodel, pixma_devices)) == (struct pixma_config_t *)NULL)
-    {
-      pixma_dbg (0, "attach_net: Scanner %s is not supported, model is unknown! Please report upstream\n", makemodel);
     error = SANE_STATUS_INVAL;
-    }
   else
     {
       si->cfg = cfg;