linux/debian/patches/features/all/cpu-devices/driver-core-cpu-fix-kobject...

32 lines
1.1 KiB
Diff

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 8 Feb 2012 15:11:17 -0800
Subject: driver-core: cpu: fix kobject warning when hotplugging a cpu
commit 29bb5d4fd3140a7d5d02d858118c74a45f15c296 upstream.
Due to the sysdev conversion to struct device, the cpu objects get
reused when adding a cpu after offlining it, which causes a big warning
that the kobject portion is not properly initialized.
So clear out the object before we register it again, so all is quiet.
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/base/cpu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 23f2c4c..4dabf50 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -240,6 +240,7 @@ int __cpuinit register_cpu(struct cpu *cpu, int num)
int error;
cpu->node_id = cpu_to_node(num);
+ memset(&cpu->dev, 0x00, sizeof(struct device));
cpu->dev.id = num;
cpu->dev.bus = &cpu_subsys;
cpu->dev.release = cpu_device_release;