Merge back cpufreq updates for v5.11.

[linux-2.6-microblaze.git] / sound / hda / ext / hdac_ext_controller.c

diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c
index 4d060d5..b0c0ef8 100644 (file)
--- a/sound/hda/ext/hdac_ext_controller.c
+++ b/sound/hda/ext/hdac_ext_controller.c
@@ -148,6 +148,8 @@ struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
                return NULL;
        if (bus->idx != bus_idx)
                return NULL;
+       if (addr < 0 || addr > 31)
+               return NULL;
 
        list_for_each_entry(hlink, &bus->hlink_list, list) {
                for (i = 0; i < HDA_MAX_CODECS; i++) {