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| author | Olof Johansson <olof@lixom.net> | 2014-07-19 14:59:07 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2014-07-19 14:59:07 -0700 |
| commit | 4e9816d012dbc28dc89559261c6ffbf8ffc440dd (patch) | |
| tree | dee9f8b31f3d6d2fb141541da88e1cc1329b017e /drivers/acpi/processor_driver.c | |
| parent | da98f44f27d81d7fe9a41f69af4fe08c18d13b56 (diff) | |
| parent | 1795cd9b3a91d4b5473c97f491d63892442212ab (diff) | |
Merge tag 'v3.16-rc5' into next/fixes-non-critical
Linux 3.16-rc5
Diffstat (limited to 'drivers/acpi/processor_driver.c')
| -rw-r--r-- | drivers/acpi/processor_driver.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 7f70f3182d5..4fcbd670415 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -121,6 +121,13 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb, struct acpi_processor *pr = per_cpu(processors, cpu); struct acpi_device *device; + /* + * CPU_STARTING and CPU_DYING must not sleep. Return here since + * acpi_bus_get_device() may sleep. + */ + if (action == CPU_STARTING || action == CPU_DYING) + return NOTIFY_DONE; + if (!pr || acpi_bus_get_device(pr->handle, &device)) return NOTIFY_DONE; |