acpi, nfit: fix health event notification
authorDan Williams <dan.j.williams@intel.com>
Fri, 1 Dec 2017 03:42:52 +0000 (19:42 -0800)
committerDan Williams <dan.j.williams@intel.com>
Mon, 4 Dec 2017 18:14:47 +0000 (10:14 -0800)
commitadf6895754e2503d994a765535fd1813f8834674
treebbb9b476f167732ad946d03b5757b52eadedbfee
parentae64f9bd1d3621b5e60d7363bc20afb46aede215
acpi, nfit: fix health event notification

Integration testing with a BIOS that generates injected health event
notifications fails to communicate those events to userspace. The nfit
driver neglects to link the ACPI DIMM device with the necessary driver
data so acpi_nvdimm_notify() fails this lookup:

        nfit_mem = dev_get_drvdata(dev);
        if (nfit_mem && nfit_mem->flags_attr)
                sysfs_notify_dirent(nfit_mem->flags_attr);

Add the necessary linkage when installing the notification handler and
clean it up when the nfit driver instance is torn down.

Cc: <stable@vger.kernel.org>
Cc: Toshi Kani <toshi.kani@hpe.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Fixes: ba9c8dd3c222 ("acpi, nfit: add dimm device notification support")
Reported-by: Daniel Osawa <daniel.k.osawa@intel.com>
Tested-by: Daniel Osawa <daniel.k.osawa@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
drivers/acpi/nfit/core.c