1 files changed, 4 insertions, 2 deletions

diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
index ac90037894d9..d2314be4f0c0 100644
--- a/include/uapi/linux/usb/audio.h
+++ b/include/uapi/linux/usb/audio.h
@@ -384,14 +384,16 @@ static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_de
                                                    int protocol)
 {
         __u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
-        return desc->baSourceID[desc->bNrInPins + control_size];
+        return *(uac_processing_unit_bmControls(desc, protocol)
+                        + control_size);
 }
 
 static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc,
                                                  int protocol)
 {
         __u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
-        return &desc->baSourceID[desc->bNrInPins + control_size + 1];
+        return uac_processing_unit_bmControls(desc, protocol)
+                        + control_size + 1;
 }
 
 /* 4.5.2 Class-Specific AS Interface Descriptor */