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[PATCH] spapr: Assert DIMM unplug state in spapr_memory_unplug()
From: |
Greg Kurz |
Subject: |
[PATCH] spapr: Assert DIMM unplug state in spapr_memory_unplug() |
Date: |
Sat, 13 Mar 2021 08:23:31 +0100 |
User-agent: |
StGit/0.21 |
spapr_memory_unplug() is the last step of the hot unplug sequence.
It is indirectly called by:
spapr_lmb_release()
hotplug_handler_unplug()
and spapr_lmb_release() already buys us that DIMM unplug state is
present : it gets restored with spapr_recover_pending_dimm_state()
if missing.
g_assert() that spapr_pending_dimm_unplugs_find() cannot return NULL
in spapr_memory_unplug() to make this clear and silence Coverity.
Fixes: Coverity CID 1450767
Signed-off-by: Greg Kurz <groug@kaod.org>
---
hw/ppc/spapr.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index d56418ca2942..73a06df3b1b1 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -3660,6 +3660,9 @@ static void spapr_memory_unplug(HotplugHandler
*hotplug_dev, DeviceState *dev)
SpaprMachineState *spapr = SPAPR_MACHINE(hotplug_dev);
SpaprDimmState *ds = spapr_pending_dimm_unplugs_find(spapr, PC_DIMM(dev));
+ /* We really shouldn't get this far without anything to unplug */
+ g_assert(ds);
+
pc_dimm_unplug(PC_DIMM(dev), MACHINE(hotplug_dev));
qdev_unrealize(dev);
spapr_pending_dimm_unplugs_remove(spapr, ds);
- [PATCH] spapr: Assert DIMM unplug state in spapr_memory_unplug(),
Greg Kurz <=