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spapr: fix memory hotplug error path

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QEMU shouldn't abort if spapr_add_lmbs()->spapr_drc_attach() fails.
Let's propagate the error instead, like it is done everywhere else
where spapr_drc_attach() is called.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2017-07-03 16:54:36 +02:00 committed by David Gibson
parent 95cb065776
commit 160bb67885
1 changed files with 22 additions and 4 deletions
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26
hw/ppc/spapr.c
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@ -2601,6 +2601,7 @@ static void spapr_add_lmbs(DeviceState *dev, uint64_t addr_start, uint64_t size,
int i, fdt_offset, fdt_size;
void *fdt;
uint64_t addr = addr_start;
Error *local_err = NULL;
for (i = 0; i < nr_lmbs; i++) {
drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB,
@ -2611,7 +2612,18 @@ static void spapr_add_lmbs(DeviceState *dev, uint64_t addr_start, uint64_t size,
fdt_offset = spapr_populate_memory_node(fdt, node, addr,
SPAPR_MEMORY_BLOCK_SIZE);
spapr_drc_attach(drc, dev, fdt, fdt_offset, errp);
spapr_drc_attach(drc, dev, fdt, fdt_offset, &local_err);
if (local_err) {
while (addr > addr_start) {
addr -= SPAPR_MEMORY_BLOCK_SIZE;
drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB,
addr / SPAPR_MEMORY_BLOCK_SIZE);
spapr_drc_detach(drc, dev, NULL);
}
g_free(fdt);
error_propagate(errp, local_err);
return;
}
addr += SPAPR_MEMORY_BLOCK_SIZE;
}
/* send hotplug notification to the
@ -2651,14 +2663,20 @@ static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
addr = object_property_get_uint(OBJECT(dimm),
PC_DIMM_ADDR_PROP, &local_err);
if (local_err) {
pc_dimm_memory_unplug(dev, &ms->hotplug_memory, mr);
goto out;
goto out_unplug;
}
spapr_add_lmbs(dev, addr, size, node,
spapr_ovec_test(ms->ov5_cas, OV5_HP_EVT),
&error_abort);
&local_err);
if (local_err) {
goto out_unplug;
}
return;
out_unplug:
pc_dimm_memory_unplug(dev, &ms->hotplug_memory, mr);
out:
error_propagate(errp, local_err);
}