From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59837) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dwRZu-0007xa-Sh for qemu-devel@nongnu.org; Mon, 25 Sep 2017 07:29:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dwRZt-000231-TD for qemu-devel@nongnu.org; Mon, 25 Sep 2017 07:29:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:54640) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dwRZt-00022X-L7 for qemu-devel@nongnu.org; Mon, 25 Sep 2017 07:29:33 -0400 From: "Dr. David Alan Gilbert (git)" Date: Mon, 25 Sep 2017 12:29:15 +0100 Message-Id: <20170925112917.21340-5-dgilbert@redhat.com> In-Reply-To: <20170925112917.21340-1-dgilbert@redhat.com> References: <20170925112917.21340-1-dgilbert@redhat.com> Subject: [Qemu-devel] [PATCH v2 4/6] migration: wire vmstate_save_state errors up to vmstate_subsection_save List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, quintela@redhat.com, peterx@redhat.com, famz@redhat.com Cc: peter.maydell@linaro.org, cohuck@redhat.com, rth@twiddle.net From: "Dr. David Alan Gilbert" Route the errors from vmstate_subsection_save up through vmstate_subsection_save (and back down, all rather recursive). Signed-off-by: Dr. David Alan Gilbert --- migration/vmstate.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/migration/vmstate.c b/migration/vmstate.c index 848e8448c6..0b3282c9df 100644 --- a/migration/vmstate.c +++ b/migration/vmstate.c @@ -21,8 +21,8 @@ #include "trace.h" #include "qjson.h" -static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, - void *opaque, QJSON *vmdesc); +static int vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, + void *opaque, QJSON *vmdesc); static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd, void *opaque); @@ -395,9 +395,7 @@ int vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, json_end_array(vmdesc); } - vmstate_subsection_save(f, vmsd, opaque, vmdesc); - - return 0; + return vmstate_subsection_save(f, vmsd, opaque, vmdesc); } static const VMStateDescription * @@ -463,11 +461,12 @@ static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd, return 0; } -static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, - void *opaque, QJSON *vmdesc) +static int vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, + void *opaque, QJSON *vmdesc) { const VMStateDescription **sub = vmsd->subsections; bool subsection_found = false; + int ret = 0; trace_vmstate_subsection_save_top(vmsd->name); while (sub && *sub && (*sub)->needed) { @@ -491,7 +490,10 @@ static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, qemu_put_byte(f, len); qemu_put_buffer(f, (uint8_t *)vmsdsub->name, len); qemu_put_be32(f, vmsdsub->version_id); - vmstate_save_state(f, vmsdsub, opaque, vmdesc); + ret = vmstate_save_state(f, vmsdsub, opaque, vmdesc); + if (ret) { + return ret; + } if (vmdesc) { json_end_object(vmdesc); @@ -503,4 +505,6 @@ static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, if (vmdesc && subsection_found) { json_end_array(vmdesc); } + + return ret; } -- 2.13.5