From f3cadd39c4489d539ea0e17169cfcf2126ed3d50 Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Mon, 25 Sep 2017 12:29:15 +0100 Subject: migration: wire vmstate_save_state errors up to vmstate_subsection_save Route the errors from vmstate_save_state up through vmstate_subsection_save (and back down, all rather recursive). Signed-off-by: Dr. David Alan Gilbert Message-Id: <20170925112917.21340-5-dgilbert@redhat.com> Reviewed-by: Peter Xu Reviewed-by: Cornelia Huck Reviewed-by: Juan Quintela Signed-off-by: Dr. David Alan Gilbert Commit message fixed up as per Peter's review --- migration/vmstate.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'migration') diff --git a/migration/vmstate.c b/migration/vmstate.c index 848e844..0b3282c 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; } -- cgit v1.1