The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 43f89877f26671c6309cd87d7364b1a3e66e71cf Mon Sep 17 00:00:00 2001
From: Dexuan Cui decui@microsoft.com Date: Wed, 30 Jan 2019 01:23:01 +0000 Subject: [PATCH] nfit: acpi_nfit_ctl(): Check out_obj->type in the right place
In the case of ND_CMD_CALL, we should also check out_obj->type.
The patch uses out_obj->type, which is a short alias to out_obj->package.type.
Fixes: 31eca76ba2fc ("nfit, libnvdimm: limited/whitelisted dimm command marshaling mechanism") Cc: stable@vger.kernel.org Signed-off-by: Dexuan Cui decui@microsoft.com Signed-off-by: Dan Williams dan.j.williams@intel.com
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 95db6a2d0d6b..1598e3a121a6 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -535,6 +535,13 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, return -EINVAL; }
+ if (out_obj->type != ACPI_TYPE_BUFFER) { + dev_dbg(dev, "%s unexpected output object type cmd: %s type: %d\n", + dimm_name, cmd_name, out_obj->type); + rc = -EINVAL; + goto out; + } + if (call_pkg) { call_pkg->nd_fw_size = out_obj->buffer.length; memcpy(call_pkg->nd_payload + call_pkg->nd_size_in, @@ -553,13 +560,6 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, return 0; }
- if (out_obj->package.type != ACPI_TYPE_BUFFER) { - dev_dbg(dev, "%s unexpected output object type cmd: %s type: %d\n", - dimm_name, cmd_name, out_obj->type); - rc = -EINVAL; - goto out; - } - dev_dbg(dev, "%s cmd: %s output length: %d\n", dimm_name, cmd_name, out_obj->buffer.length); print_hex_dump_debug(cmd_name, DUMP_PREFIX_OFFSET, 4, 4,