diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-03 11:37:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-03 11:37:15 -0700 |
| commit | 542a086ac72fb193cbc1b996963a572269e57743 (patch) | |
| tree | b137c08037cca4ffc8a156a891a01113b3b8edce /drivers/base/cpu.c | |
| parent | 1d1fdd95df681f0c065d90ffaafa215a0e8825e2 (diff) | |
| parent | 1eeeef153c02f5856ec109fa532eb5f31c39f85c (diff) | |
Merge tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg KH:
"Here's the big driver core pull request for 3.12-rc1.
Lots of tiny changes here fixing up the way sysfs attributes are
created, to try to make drivers simpler, and fix a whole class race
conditions with creations of device attributes after the device was
announced to userspace.
All the various pieces are acked by the different subsystem
maintainers"
* tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits)
firmware loader: fix pending_fw_head list corruption
drivers/base/memory.c: introduce help macro to_memory_block
dynamic debug: line queries failing due to uninitialized local variable
sysfs: sysfs_create_groups returns a value.
debugfs: provide debugfs_create_x64() when disabled
rbd: convert bus code to use bus_groups
firmware: dcdbas: use binary attribute groups
sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled
driver core: add #include <linux/sysfs.h> to core files.
HID: convert bus code to use dev_groups
Input: serio: convert bus code to use drv_groups
Input: gameport: convert bus code to use drv_groups
driver core: firmware: use __ATTR_RW()
driver core: core: use DEVICE_ATTR_RO
driver core: bus: use DRIVER_ATTR_WO()
driver core: create write-only attribute macros for devices and drivers
sysfs: create __ATTR_WO()
driver-core: platform: convert bus code to use dev_groups
workqueue: convert bus code to use dev_groups
MEI: convert bus code to use dev_groups
...
Diffstat (limited to 'drivers/base/cpu.c')
| -rw-r--r-- | drivers/base/cpu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 4c358bc44c7..6bfaaca6955 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -43,11 +43,14 @@ static int __ref cpu_subsys_online(struct device *dev) struct cpu *cpu = container_of(dev, struct cpu, dev); int cpuid = dev->id; int from_nid, to_nid; - int ret; + int ret = -ENODEV; cpu_hotplug_driver_lock(); from_nid = cpu_to_node(cpuid); + if (from_nid == NUMA_NO_NODE) + goto out; + ret = cpu_up(cpuid); /* * When hot adding memory to memoryless node and enabling a cpu @@ -57,6 +60,7 @@ static int __ref cpu_subsys_online(struct device *dev) if (from_nid != to_nid) change_cpu_under_node(cpu, from_nid, to_nid); + out: cpu_hotplug_driver_unlock(); return ret; } |