From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57914) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VWqkv-0005vO-4s for qemu-devel@nongnu.org; Thu, 17 Oct 2013 12:49:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VWqkq-0005Eg-Ex for qemu-devel@nongnu.org; Thu, 17 Oct 2013 12:49:01 -0400 Received: from 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.1.0.0.b.8.0.1.0.0.2.ip6.arpa ([2001:8b0:1d0::1]:49146 helo=mnementh.archaic.org.uk) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VWqkq-00059a-8a for qemu-devel@nongnu.org; Thu, 17 Oct 2013 12:48:56 -0400 From: Peter Maydell Date: Thu, 17 Oct 2013 17:48:44 +0100 Message-Id: <1382028526-1826-2-git-send-email-peter.maydell@linaro.org> In-Reply-To: <1382028526-1826-1-git-send-email-peter.maydell@linaro.org> References: <1382028526-1826-1-git-send-email-peter.maydell@linaro.org> Subject: [Qemu-devel] [PATCH v8 1/3] device_tree.c: Terminate the empty reservemap in create_device_tree() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Alexander Graf , kvmarm@lists.cs.columbia.edu, "Mian M. Hamayun" , patches@linaro.org Device trees created with create_device_tree() may not have any entries in their reservemap, because the FDT API requires that the reservemap is completed before any FDT nodes are added, and create_device_tree() itself creates a node. However we were not calling fdt_finish_reservemap(), which meant that there was no terminator in the reservemap list and whatever happened to be at the start of the FDT data section would end up being interpreted as reservemap entries. Avoid this by calling fdt_finish_reservemap() to add the terminator. Signed-off-by: Peter Maydell Acked-by: Alexander Graf --- device_tree.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/device_tree.c b/device_tree.c index ffec99a..391da8c 100644 --- a/device_tree.c +++ b/device_tree.c @@ -41,6 +41,10 @@ void *create_device_tree(int *sizep) if (ret < 0) { goto fail; } + ret = fdt_finish_reservemap(fdt); + if (ret < 0) { + goto fail; + } ret = fdt_begin_node(fdt, ""); if (ret < 0) { goto fail; -- 1.7.9.5