ALSA: hda - Return the error from get_wcaps_type() for invalid NIDs

[karo-tx-linux.git] / sound / pci / hda / hda_local.h

diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 5f1dcc59002b4a610f0bff8b6455e9d1205f42a9..f8ac43aa0eb7a9200b78d737f4d0832fee75b1fd 100644 (file)
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -408,7 +408,12 @@ static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
 }
 
 /* get the widget type from widget capability bits */
-#define get_wcaps_type(wcaps) (((wcaps) & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT)
+static inline int get_wcaps_type(unsigned int wcaps)
+{
+       if (!wcaps)
+               return -1; /* invalid type */
+       return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
+}
 
 static inline unsigned int get_wcaps_channels(u32 wcaps)
 {