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
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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	drivers: pinctrl sleep and idle states in the core	2013-06-16 11:56:52 +02:00
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