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-rw-r--r--drivers/acpi/ioapic.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c
index 1120dfd625b8..7e4fbf9a53a3 100644
--- a/drivers/acpi/ioapic.c
+++ b/drivers/acpi/ioapic.c
@@ -45,6 +45,12 @@ static acpi_status setup_res(struct acpi_resource *acpi_res, void *data)
struct resource *res = data;
struct resource_win win;
+ /*
+ * We might assign this to 'res' later, make sure all pointers are
+ * cleared before the resource is added to the global list
+ */
+ memset(&win, 0, sizeof(win));
+
res->flags = 0;
if (acpi_dev_filter_resource_type(acpi_res, IORESOURCE_MEM))
return AE_OK;