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-rw-r--r--drivers/acpi/nfit/core.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index b8040fed2a69..7c479002e798 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -408,7 +408,8 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
const guid_t *guid;
int rc, i;
- *cmd_rc = -EINVAL;
+ if (cmd_rc)
+ *cmd_rc = -EINVAL;
func = cmd;
if (cmd == ND_CMD_CALL) {
call_pkg = buf;
@@ -519,7 +520,8 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
* If we return an error (like elsewhere) then caller wouldn't
* be able to rely upon data returned to make calculation.
*/
- *cmd_rc = 0;
+ if (cmd_rc)
+ *cmd_rc = 0;
return 0;
}