sleep: check if we're on AC power before checking battery capacity

Before this commit, battery_is_low() returns
true if there's no battery on the system.
It's now modified to check if the system is
on AC power first, and returns false early
if that's the case.

Fixes #26492

1 files changed, 1 insertions, 1 deletions

diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c
index 9018188cba..f7fee4a14c 100644
--- a/src/sleep/sleep.c
+++ b/src/sleep/sleep.c
@@ -274,7 +274,7 @@ static int custom_timer_suspend(const SleepConfig *sleep_config) {
 
         hibernate_timestamp = usec_add(now(CLOCK_BOOTTIME), sleep_config->hibernate_delay_usec);
 
-        while (battery_is_low() == 0) {
+        while (battery_is_discharging_and_low() == 0) {
                 _cleanup_hashmap_free_ Hashmap *last_capacity = NULL, *current_capacity = NULL;
                 _cleanup_close_ int tfd = -EBADF;
                 struct itimerspec ts = {};