ACPI: watchdog: Put the watchdog action table after parsing

The mapped watchdog action table should be released after the
successfully parsing, and the failure path in the driver
initialization.

Signed-off-by: Hanjun Guo <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: guohanjun

drivers/acpi/acpi_watchdog.c

@@ -73,6 +73,7 @@ static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void)
 	}
 
 	if (acpi_watchdog_uses_rtc(wdat)) {
+		acpi_put_table((struct acpi_table_header *)wdat);
 		pr_info("Skipping WDAT on this system because it uses RTC SRAM\n");
 		return NULL;
 	}
@@ -117,12 +118,12 @@ void __init acpi_watchdog_init(void)
 
 	/* Watchdog disabled by BIOS */
 	if (!(wdat->flags & ACPI_WDAT_ENABLED))
-		return;
+		goto fail_put_wdat;
 
 	/* Skip legacy PCI WDT devices */
 	if (wdat->pci_segment != 0xff || wdat->pci_bus != 0xff ||
 	    wdat->pci_device != 0xff || wdat->pci_function != 0xff)
-		return;
+		goto fail_put_wdat;
 
 	INIT_LIST_HEAD(&resource_list);
 
@@ -188,4 +189,6 @@ void __init acpi_watchdog_init(void)
 
 fail_free_resource_list:
 	resource_list_free(&resource_list);
+fail_put_wdat:
+	acpi_put_table((struct acpi_table_header *)wdat);
 }