diff --git a/drivers/acpi/apei/einj-core.c b/drivers/acpi/apei/einj-core.c
index 59777a292ffc..3d37978418e8 100644
--- a/drivers/acpi/apei/einj-core.c
+++ b/drivers/acpi/apei/einj-core.c
@@ -401,7 +401,7 @@ static int __einj_error_trigger(u64 trigger_paddr, u32 type,
 	u32 table_size;
 	int rc = -EIO;
 	struct acpi_generic_address *trigger_param_region = NULL;
-	struct acpi_einj_trigger __iomem *p;
+	struct acpi_einj_trigger __iomem *p = NULL;
 
 	r = request_mem_region(trigger_paddr, sizeof(trigger_tab),
 			       "APEI EINJ Trigger Table");