Hi,

We should offline and remove memory when removing the memory device.
The memory device can be removed by 2 ways:
1. send eject request by SCI
2. echo 1 >/sys/bus/pci/devices/PNP0C80:XX/eject

[snip]

+
+static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
+{
+       int result;
+
+       /*
+        * Ask the VM to offline this memory range.
+        * Note: Assume that this function returns zero on success
+        */
+       result = acpi_memory_device_remove_memory(mem_device);
+

here we should check the result of acpi_memory_device_remove_memory()
and not continue if it failed.

        /* Power-off and eject the device */
        result = acpi_memory_powerdown_device(mem_device);
        if (result) {

thanks,

- Vasilis