Created attachment 32123 [details] [review]
Have dkp_daemon_check_swap function 1st  check if swap exists before determining how much is free

dkp_client_can_hibernate can return true even if the machine has no swap partition.  When determining the value of its can_hibernate property, devicekit-power checks if the kernel supports hibernate and whether there is enough swap space available to perform a hibernate.  However, it does not seem to account for the possibility that a machine may not have a swap partition even though its kernel supports it.  In this case, devicekit-power detects that the kernel supports hibernate and treats the swap space as completely available (therefore dkp_client_can_hibernate returns true).  The attached patch modifies devicekit-power to first check if a swap partition exists before calculating how much is available.