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[PULL 1/1] hw/core: fix error checkig in smp_parse
From: |
Eduardo Habkost |
Subject: |
[PULL 1/1] hw/core: fix error checkig in smp_parse |
Date: |
Thu, 12 Aug 2021 15:04:28 -0400 |
From: Daniel P. Berrangé <berrange@redhat.com>
The machine_set_smp() mistakenly checks 'errp' not '*errp',
and so thinks there is an error every single time it runs.
This causes it to jump to the end of the method, skipping
the max CPUs checks. The caller meanwhile sees no error
and so carries on execution. The result of all this is:
$ qemu-system-x86_64 -smp -1
qemu-system-x86_64: GLib: ../glib/gmem.c:142: failed to allocate 481036337048
bytes
instead of
$ qemu-system-x86_64 -smp -1
qemu-system-x86_64: Invalid SMP CPUs -1. The max CPUs supported by machine
'pc-i440fx-6.1' is 255
This is a regression from
commit fe68090e8fbd6e831aaf3fc3bb0459c5cccf14cf
Author: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu May 13 09:03:48 2021 -0400
machine: add smp compound property
Closes: https://gitlab.com/qemu-project/qemu/-/issues/524
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210812175353.4128471-1-berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
hw/core/machine.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 943974d411c..ab4fca6546a 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -832,7 +832,7 @@ static void machine_set_smp(Object *obj, Visitor *v, const
char *name,
}
mc->smp_parse(ms, config, errp);
- if (errp) {
+ if (*errp) {
goto out_free;
}
--
2.31.1