ALSA: hda - Fix possible access to uninitialized work struct
authorTakashi Iwai <tiwai@suse.de>
Mon, 7 May 2012 13:01:02 +0000 (15:01 +0200)
committerTakashi Iwai <tiwai@suse.de>
Tue, 8 May 2012 14:39:57 +0000 (16:39 +0200)
The work struct must be initialized before the possible call in the
destructor.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/hda_codec.c

index 393a304..98976c8 100644 (file)
@@ -1264,13 +1264,6 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus,
        snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
        snd_array_init(&codec->conn_lists, sizeof(hda_nid_t), 64);
        snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
-       if (codec->bus->modelname) {
-               codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
-               if (!codec->modelname) {
-                       snd_hda_codec_free(codec);
-                       return -ENODEV;
-               }
-       }
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
        INIT_DELAYED_WORK(&codec->power_work, hda_power_work);
@@ -1281,6 +1274,14 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus,
        hda_keep_power_on(codec);
 #endif
 
+       if (codec->bus->modelname) {
+               codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
+               if (!codec->modelname) {
+                       snd_hda_codec_free(codec);
+                       return -ENODEV;
+               }
+       }
+
        list_add_tail(&codec->list, &bus->codec_list);
        bus->caddr_tbl[codec_addr] = codec;