isobusfs: do not kill application on error_queue error

Kernel may notify us about some error, which may happens if the bus was
in the error state. But this is not a good reason to kill application,
especially the server side.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>

isobusfs/isobusfs_cli.c

@@ -288,8 +288,8 @@ static int isobusfs_cli_handle_events(struct isobusfs_priv *priv, unsigned int n
 				};
 
 				ret = isobusfs_recv_err(priv->sock_ccm, &emsg);
-				if (ret && ret != -EINTR)
-					return ret;
+				if (ret)
+					pr_warn("error queue reported error: %i", ret);
 			}
 		} else if (ev->data.fd == STDIN_FILENO) {
 			if (!priv->interactive) {

isobusfs/isobusfs_srv.c

@@ -221,8 +221,8 @@ static int isobusfs_srv_handle_events(struct isobusfs_srv_priv *priv, unsigned i
 				};
 
 				ret = isobusfs_recv_err(priv->sock_fss, &emsg);
-				if (ret && ret != -EINTR)
-					return ret;
+				if (ret)
+					pr_warn("error queue reported error: %i", ret);
 			}
 		}