r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/power/image_size', 0x0, 0x0)
preadv(r0, &(0x7f0000000440)=[{&(0x7f00000003c0)=""/72, 0x48}], 0x1, 0x0, 0x0)