ACPI: battery: fix ACPI battery technology reporting

At least some systems report technology information with trailing spaces:

{pts/1}% cat -E /var/tmp/bat/2.6.23 | grep type
battery type:            Li-ION  $

Use strncasecmp to compare model string to skip trailing part

Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 7d6be23..8f7505d 100644 (file)
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -125,7 +125,7 @@ static int acpi_battery_technology(struct acpi_battery *battery)
                return POWER_SUPPLY_TECHNOLOGY_NiMH;
        if (!strcasecmp("LION", battery->type))
                return POWER_SUPPLY_TECHNOLOGY_LION;
-       if (!strcasecmp("LI-ION", battery->type))
+       if (!strncasecmp("LI-ION", battery->type, 6))
                return POWER_SUPPLY_TECHNOLOGY_LION;
        if (!strcasecmp("LiP", battery->type))
                return POWER_SUPPLY_TECHNOLOGY_LIPO;