AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-21 21:53:28 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
94232d9ce8
linux_dsm_epyc7002/drivers/base
History
Yasuaki Ishimatsu a37f86305c driver core: Release device_hotplug_lock when store_mem_state returns EINVAL 
When inserting a wrong value to /sys/devices/system/memory/memoryX/state file,
following messages are shown. And device_hotplug_lock is never released.

================================================
[ BUG: lock held when returning to user space! ]
3.12.0-rc4-debug+ #3 Tainted: G        W
------------------------------------------------
bash/6442 is leaving the kernel with locks still held!
1 lock held by bash/6442:
 #0:  (device_hotplug_lock){+.+.+.}, at: [<ffffffff8146cbb5>] lock_device_hotplug_sysfs+0x15/0x50

This issue was introdued by commit fa2be40 (drivers: base: use standard
device online/offline for state change).

This patch releases device_hotplug_lcok when store_mem_state returns EINVAL.

Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Toshi Kani <toshi.kani@hp.com>
CC: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-16 18:42:41 -07:00
..
power ACPI and power management updates for 3.12-rc1 2013-09-03 15:59:39 -07:00
regmap Driver core patches for 3.12-rc1 2013-09-03 11:37:15 -07:00
attribute_container.c drivers: avoid format string in dev_set_name 2013-07-03 16:07:41 -07:00
base.h driver core: bus_type: add drv_groups 2013-08-12 15:33:31 -07:00
bus.c driver core: add #include <linux/sysfs.h> to core files. 2013-08-27 10:24:15 -07:00
class.c sysfs.h: remove attr_name() macro 2013-08-22 10:25:34 -07:00
core.c driver core : Fix use after free of dev->parent in device_shutdown 2013-09-26 14:46:11 -07:00
cpu.c ACPI and power management updates for 3.12-rc1 2013-09-03 15:59:39 -07:00
dd.c
devres.c
devtmpfs.c
dma-buf.c dma-buf: Expose buffer size to userspace (v2) 2013-09-10 11:36:45 +05:30
dma-coherent.c
dma-contiguous.c drivers: dma-contiguous: clean source code and prepare for device tree 2013-08-27 09:18:29 +02:00
dma-mapping.c
driver.c driver core: add #include <linux/sysfs.h> to core files. 2013-08-27 10:24:15 -07:00
firmware_class.c firmware loader: fix pending_fw_head list corruption 2013-08-30 12:04:27 -07:00
firmware.c
hypervisor.c
init.c
isa.c
Kconfig Merge remote-tracking branch 'dma-public/for-v3.12-cma-dma' into for-next 2013-07-15 11:13:54 +02:00
Makefile Merge remote-tracking branch 'origin/next' into kvm-ppc-next 2013-08-29 00:41:59 +02:00
map.c
memory.c driver core: Release device_hotplug_lock when store_mem_state returns EINVAL 2013-10-16 18:42:41 -07:00
module.c
node.c thp: account anon transparent huge pages into NR_ANON_PAGES 2013-09-12 15:38:03 -07:00
pinctrl.c
platform.c driver-core: platform: convert bus code to use dev_groups 2013-08-23 14:43:44 -07:00
reservation.c reservation: cross-device reservation support, v4 2013-06-28 12:02:15 +10:00
soc.c
syscore.c
topology.c cpu topology: remove stale arch_provides_topology_pointers and define_siblings_show_map/list() 2013-07-29 13:12:45 -07:00
transport_class.c