From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 22 Mar 2010 07:30:20 +0000 (+0100)
Subject: ALSA: hda - Fix access-after-free in patch_realtek.c
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bae84e70d66fe46c12231082cf1c4848ea22f3ef;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ALSA: hda - Fix access-after-free in patch_realtek.c

alc_free_kctls() has to be called after all jobs done in alc_build_controls().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 4ec57633af88..053d53d8c8b2 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2532,8 +2532,6 @@ static int alc_build_controls(struct hda_codec *codec)
 			return err;
 	}
 
-	alc_free_kctls(codec); /* no longer needed */
-
 	/* assign Capture Source enums to NID */
 	kctl = snd_hda_find_mixer_ctl(codec, "Capture Source");
 	if (!kctl)
@@ -2602,6 +2600,9 @@ static int alc_build_controls(struct hda_codec *codec)
 			}
 		}
 	}
+
+	alc_free_kctls(codec); /* no longer needed */
+
 	return 0;
 }