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authorViresh Kumar <viresh.kumar@linaro.org>2015-09-26 22:04:06 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-04 10:36:07 (GMT)
commit6e58f752a6502b43e039fd7df2c7c5cde8dde437 (patch)
treeb2569a3bf18bb5baea105240be75ac0514029fce /drivers/acpi/ec_sys.c
parent9ffecb10283508260936b96022d4ee43a7798b4c (diff)
downloadlinux-6e58f752a6502b43e039fd7df2c7c5cde8dde437.tar.xz
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/ec_sys.c')
-rw-r--r--drivers/acpi/ec_sys.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c
index b4c216b..bea8e42 100644
--- a/drivers/acpi/ec_sys.c
+++ b/drivers/acpi/ec_sys.c
@@ -128,7 +128,7 @@ static int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count)
if (!debugfs_create_x32("gpe", 0444, dev_dir, (u32 *)&first_ec->gpe))
goto error;
if (!debugfs_create_bool("use_global_lock", 0444, dev_dir,
- (u32 *)&first_ec->global_lock))
+ &first_ec->global_lock))
goto error;
if (write_support)