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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-09-27 00:04:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 12:36:07 +0200 |
| commit | 6e58f752a6502b43e039fd7df2c7c5cde8dde437 (patch) | |
| tree | b2569a3bf18bb5baea105240be75ac0514029fce /drivers/acpi/internal.h | |
| parent | Linux 4.3-rc3 (diff) | |
| download | linux-6e58f752a6502b43e039fd7df2c7c5cde8dde437.tar.xz linux-6e58f752a6502b43e039fd7df2c7c5cde8dde437.zip | |
ACPI / EC: Fix broken 64bit big-endian users of 'global_lock'
global_lock is defined as an unsigned long and accessing only its lower
32 bits from sysfs is incorrect, as we need to consider other 32 bits
for big endian 64-bit systems. There are no such platforms yet, but the
code needs to be robust for such a case.
Fix that by changing type of 'global_lock' to u32.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi/internal.h')
| -rw-r--r-- | drivers/acpi/internal.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 9e426210c2a8..9db196de003c 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -138,7 +138,7 @@ struct acpi_ec { unsigned long gpe; unsigned long command_addr; unsigned long data_addr; - unsigned long global_lock; + u32 global_lock; unsigned long flags; unsigned long reference_count; struct mutex mutex; |