tree 55e8986f9632c035151cdfcaa5aeae32b5f08511
parent f2ba5a5baecf795c2150826bd0c95fc3f7f3d226
author Toshi Kani <toshi.kani@hpe.com> 1517605236 -0700
committer Dan Williams <dan.j.williams@intel.com> 1517608169 -0800

acpi, nfit: fix register dimm error handling

A NULL pointer reference kernel bug was observed when
acpi_nfit_add_dimm() called in acpi_nfit_register_dimms() failed. This
error path does not set nfit_mem->nvdimm, but the 2nd
list_for_each_entry() loop in the function assumes it's always set. Add
a check to nfit_mem->nvdimm.

Cc: <stable@vger.kernel.org>
Fixes: ba9c8dd3c222 ("acpi, nfit: add dimm device notification support")
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>