[PATCH 4/4] ACPI / battery: get rid of negations in conditions

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Simple conditions without negations inflict less cognitive load
on readers.

Rework conditional branches not to use negations. Also add braces
around single statement branches where their counterpart else-branches
consist of more than one statement as suggested in the paragraph 3 of
the coding style.

Suggested-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Dmitry Rozhkov <dmitry.rozhkov@xxxxxxxxxxxxxxx>
---
 drivers/acpi/battery.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 36c525bc38ba..38b5eed72685 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -848,7 +848,7 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
 			   acpi_battery_units(battery));
 
 	seq_printf(seq, "battery technology:      %srechargeable\n",
-		   (!battery->technology)?"non-":"");
+		   battery->technology ? "" : "non-");
 
 	if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
 		seq_printf(seq, "design voltage:          unknown\n");
@@ -1135,7 +1135,9 @@ static int battery_notify(struct notifier_block *nb,
 		if (!acpi_battery_present(battery))
 			return 0;
 
-		if (!battery->bat) {
+		if (battery->bat) {
+			acpi_battery_refresh(battery);
+		} else {
 			result = acpi_battery_get_info(battery);
 			if (result)
 				return result;
@@ -1143,8 +1145,7 @@ static int battery_notify(struct notifier_block *nb,
 			result = sysfs_add_battery(battery);
 			if (result)
 				return result;
-		} else
-			acpi_battery_refresh(battery);
+		}
 
 		acpi_battery_init_alarm(battery);
 		acpi_battery_get_state(battery);
-- 
2.13.6

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