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x86/wmi: delete unused wmi_data_lock mutex causing gcc warning

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In commit bff431e49f ("ACPI: WMI: Add
ACPI-WMI mapping driver") this mutex was added, but the rest of the
final commit never actually made use of it, resulting in:

 In file included from include/linux/mutex.h:29:0,
                  from include/linux/kernfs.h:13,
                  from include/linux/sysfs.h:15,
                  from include/linux/kobject.h:21,
                  from include/linux/device.h:17,
                  from drivers/platform/x86/wmi.c:35:
 drivers/platform/x86/wmi.c:48:21: warning: ‘wmi_data_lock’ defined but not used [-Wunused-variable]
  static DEFINE_MUTEX(wmi_data_lock);
                      ^

A git grep shows no other instances/references to the wmi_data_lock.
Delete it, assuming that the mutex addition was just a leftover from
an earlier work in progress version of the change, since the original
dates from 2008.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This commit is contained in:
Paul Gortmaker 2015-03-23 14:01:37 -04:00 committed by Darren Hart
parent 4eebd5a4e7
commit f62a4ffd43
1 changed files with 0 additions and 1 deletions
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drivers/platform/x86/wmi.c
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@ -45,7 +45,6 @@ MODULE_LICENSE("GPL");
#define ACPI_WMI_CLASS "wmi"
static DEFINE_MUTEX(wmi_data_lock);
static LIST_HEAD(wmi_block_list);
struct guid_block {