[PATCH 1/2] ALSA: hda/ca0132: set codec->spec to NULL after freeing

[songxiebing]

From: Bob Song <songxiebing@xxxxxxxxxx>

ca0132_free() and dbpro_free() call kfree(codec->spec) without
setting codec->spec to NULL afterward, leaving a dangling pointer.
Set it to NULL.

Signed-off-by: Bob Song <songxiebing@xxxxxxxxxx>
---
 sound/hda/codecs/ca0132.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/hda/codecs/ca0132.c b/sound/hda/codecs/ca0132.c
index 3fe11983d6ca..424224ef4621 100644
--- a/sound/hda/codecs/ca0132.c
+++ b/sound/hda/codecs/ca0132.c
@@ -9634,6 +9634,7 @@ static void ca0132_free(struct hda_codec *codec)
 #endif
 	kfree(spec->spec_init_verbs);
 	kfree(codec->spec);
+	codec->spec = NULL;
 }
 
 static void dbpro_free(struct hda_codec *codec)
@@ -9644,6 +9645,7 @@ static void dbpro_free(struct hda_codec *codec)
 
 	kfree(spec->spec_init_verbs);
 	kfree(codec->spec);
+	codec->spec = NULL;
 }
 
 static void ca0132_config(struct hda_codec *codec)
-- 
2.25.1