r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000140)='/sys/power/pm_trace_dev_match', 0x0, 0x0)
copy_file_range(r0, 0x0, 0xffffffffffffffff, 0x0, 0x9, 0x0)
pread64(r0, &(0x7f0000000040)=""/135, 0x87, 0x0)