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authorLan Tianyu <tianyu.lan@intel.com>2013-07-30 14:00:42 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-11 15:38:22 -0700
commit09ff7f1fc186c7c45211c8e70761863366e6c7b6 (patch)
tree823a5a3b9e615a566018006e03134d61de909362
parent605e81c987e95f423ee97173a2002363404a1402 (diff)
ACPI / battery: Fix parsing _BIX return value
commit 016d5baad04269e8559332df05f89bd95b52d6ad upstream. The _BIX method returns extended battery info as a package. According the ACPI spec (ACPI 5, Section 10.2.2.2), the first member of that package should be "Revision". However, the current ACPI battery driver treats the first member as "Power Unit" which should be the second member. This causes the result of _BIX return data parsing to be incorrect. Fix this by adding a new member called 'revision' to struct acpi_battery and adding the offsetof() information on it to extended_info_offsets[] as the first row. [rjw: Changelog] Reported-and-tested-by: Jan Hoffmann <jan.christian.hoffmann@gmail.com> References: http://bugzilla.kernel.org/show_bug.cgi?id=60519 Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/acpi/battery.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 4a15d57b7bc2..908f40af6b78 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -118,6 +118,7 @@ struct acpi_battery {
struct acpi_device *device;
struct notifier_block pm_nb;
unsigned long update_time;
+ int revision;
int rate_now;
int capacity_now;
int voltage_now;
@@ -350,6 +351,7 @@ static struct acpi_offsets info_offsets[] = {
};
static struct acpi_offsets extended_info_offsets[] = {
+ {offsetof(struct acpi_battery, revision), 0},
{offsetof(struct acpi_battery, power_unit), 0},
{offsetof(struct acpi_battery, design_capacity), 0},
{offsetof(struct acpi_battery, full_charge_capacity), 0},