r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/power/pm_test', 0x22902, 0x0)
r1 = fcntl$dupfd(r0, 0x0, r0)
sendfile(r0, r1, &(0x7f0000000000)=0xcd, 0x1f)