diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/shared/sleep-config.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c index 6c7ce4b66a..04e76ad317 100644 --- a/src/shared/sleep-config.c +++ b/src/shared/sleep-config.c @@ -46,7 +46,6 @@ #define DISCHARGE_RATE_FILEPATH "/var/lib/systemd/sleep/battery_discharge_percentage_rate_per_hour" #define BATTERY_DISCHARGE_RATE_HASH_KEY SD_ID128_MAKE(5f,9a,20,18,38,76,46,07,8d,36,58,0b,bb,c4,e0,63) -#define SYS_ENTRY_RAW_FILE_TYPE1 "/sys/firmware/dmi/entries/1-0/raw" static void *CAPACITY_TO_PTR(int capacity) { assert(capacity >= 0); @@ -478,25 +477,25 @@ int battery_trip_point_alarm_exists(void) { /* Return true if wakeup type is APM timer */ int check_wakeup_type(void) { - _cleanup_free_ char *s = NULL; + static const char dmi_object_path[] = "/sys/firmware/dmi/entries/1-0/raw"; uint8_t wakeup_type_byte, tablesize; - size_t readsize; + _cleanup_free_ char *buf = NULL; + size_t bufsize; int r; /* implementation via dmi/entries */ - r = read_full_virtual_file(SYS_ENTRY_RAW_FILE_TYPE1, &s, &readsize); + r = read_full_virtual_file(dmi_object_path, &buf, &bufsize); if (r < 0) - return log_debug_errno(r, "Unable to read %s: %m", SYS_ENTRY_RAW_FILE_TYPE1); - - if (readsize < 25) - return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Only read %zu bytes from %s (expected 25)", readsize, SYS_ENTRY_RAW_FILE_TYPE1); + return log_debug_errno(r, "Unable to read %s: %m", dmi_object_path); + if (bufsize < 25) + return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Only read %zu bytes from %s (expected 25)", bufsize, dmi_object_path); /* index 1 stores the size of table */ - tablesize = (uint8_t) s[1]; + tablesize = (uint8_t) buf[1]; if (tablesize < 25) return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Table size lesser than the index[0x18] where waketype byte is available."); - wakeup_type_byte = (uint8_t) s[24]; + wakeup_type_byte = (uint8_t) buf[24]; /* 0 is Reserved and 8 is AC Power Restored. As per table 12 in * https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.4.0.pdf */ if (wakeup_type_byte >= 128) |