From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:34432) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qa471-0007At-S7 for qemu-devel@nongnu.org; Fri, 24 Jun 2011 06:59:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qa46z-0001Xt-61 for qemu-devel@nongnu.org; Fri, 24 Jun 2011 06:59:47 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55958) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qa46y-0001Xc-QR for qemu-devel@nongnu.org; Fri, 24 Jun 2011 06:59:45 -0400 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p5OAxigX029719 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 24 Jun 2011 06:59:44 -0400 From: Gerd Hoffmann Date: Fri, 24 Jun 2011 12:59:28 +0200 Message-Id: <1308913175-10454-7-git-send-email-kraxel@redhat.com> In-Reply-To: <1308913175-10454-1-git-send-email-kraxel@redhat.com> References: <1308913175-10454-1-git-send-email-kraxel@redhat.com> Subject: [Qemu-devel] [PATCH 06/13] usb-bus: Don't allow attaching a device to a bus with no free ports List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Hans de Goede , Gerd Hoffmann From: Hans de Goede Signed-off-by: Gerd Hoffmann --- hw/usb-bus.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/hw/usb-bus.c b/hw/usb-bus.c index 480956d..0a49921 100644 --- a/hw/usb-bus.c +++ b/hw/usb-bus.c @@ -181,6 +181,11 @@ static void do_attach(USBDevice *dev) dev->product_desc); return; } + if (bus->nfree == 0) { + fprintf(stderr, "Warning: tried to attach usb device %s to a bus with no free ports\n", + dev->product_desc); + return; + } if (dev->port_path) { QTAILQ_FOREACH(port, &bus->free, next) { if (strcmp(port->path, dev->port_path) == 0) { -- 1.7.1