From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48085) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uw5qJ-00008t-5C for qemu-devel@nongnu.org; Mon, 08 Jul 2013 03:26:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uw5qG-0005V5-BU for qemu-devel@nongnu.org; Mon, 08 Jul 2013 03:26:38 -0400 Received: from mail-pb0-x229.google.com ([2607:f8b0:400e:c01::229]:42689) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uw5qG-0005Uh-5E for qemu-devel@nongnu.org; Mon, 08 Jul 2013 03:26:36 -0400 Received: by mail-pb0-f41.google.com with SMTP id rp16so4018219pbb.0 for ; Mon, 08 Jul 2013 00:26:35 -0700 (PDT) From: Xu Wang Date: Mon, 8 Jul 2013 03:26:06 -0400 Message-Id: <1373268366-14508-6-git-send-email-cngesaint@gmail.com> In-Reply-To: <1373268366-14508-1-git-send-email-cngesaint@gmail.com> References: <1373268366-14508-1-git-send-email-cngesaint@gmail.com> Subject: [Qemu-devel] [PATCH V2 5/5] Add infinite loop check in drive_init() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, stefanha@gmail.com, Xu Wang , xiawenc@linux.vnet.ibm.com Signed-off-by: Xu Wang --- blockdev.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/blockdev.c b/blockdev.c index 5975dde..0178764 100644 --- a/blockdev.c +++ b/blockdev.c @@ -695,6 +695,11 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type) error_report("warning: disabling copy_on_read on readonly drive"); } + /* Add backing file loop check */ + if (bdrv_backing_file_loop_check(file, NULL, true, NULL, NULL)) { + goto err; + } + ret = bdrv_open(dinfo->bdrv, file, bs_opts, bdrv_flags, drv); bs_opts = NULL; -- 1.8.1.4