[ALSA] ASoC codec error reporting

This patch improves the codec probe() error reporting by printing error
messages when the card or pcms fail to register.

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 13 insertions, 9 deletions

diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 36c6a38a0f94..b2d2d03b9544 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -692,10 +692,8 @@ static int wm9712_soc_probe(struct platform_device *pdev)
         codec->reg_cache =
                 kzalloc(sizeof(u16) * ARRAY_SIZE(wm9712_reg), GFP_KERNEL);
         if (codec->reg_cache == NULL) {
-                kfree(codec->ac97);
-                kfree(socdev->codec);
-                socdev->codec = NULL;
-                return -ENOMEM;
+                ret = -ENOMEM;
+                goto cache_err;
         }
         memcpy(codec->reg_cache, wm9712_reg, sizeof(u16) * ARRAY_SIZE(wm9712_reg));
         codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(wm9712_reg);
@@ -712,8 +710,10 @@ static int wm9712_soc_probe(struct platform_device *pdev)
         INIT_LIST_HEAD(&codec->dapm_paths);
 
         ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
-        if (ret < 0)
-                goto err;
+        if (ret < 0) {
+                printk(KERN_ERR "wm9712: failed to register AC97 codec\n");
+                goto codec_err;
+        }
 
         /* register pcms */
         ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
@@ -733,8 +733,10 @@ static int wm9712_soc_probe(struct platform_device *pdev)
         wm9712_add_controls(codec);
         wm9712_add_widgets(codec);
         ret = snd_soc_register_card(socdev);
-        if (ret < 0)
+        if (ret < 0) {
+                printk(KERN_ERR "wm9712: failed to register card\n");
                 goto reset_err;
+        }
 
         return 0;
 
@@ -744,8 +746,10 @@ reset_err:
 pcm_err:
         snd_soc_free_ac97_codec(codec);
 
-err:
-        kfree(socdev->codec->reg_cache);
+codec_err:
+        kfree(codec->reg_cache);
+
+cache_err:
         kfree(socdev->codec);
         socdev->codec = NULL;
         return ret;