ASoC: soc-core: care card_probed at soc_cleanup_card_resources()
authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Wed, 13 Nov 2019 01:16:48 +0000 (10:16 +0900)
committerMark Brown <broonie@kernel.org>
Fri, 15 Nov 2019 12:02:39 +0000 (12:02 +0000)
soc_cleanup_card_resources() will call card->remove(), but it should be
called if card->probe() or card->late_probe() are called.
snd_soc_bind_card() might be error before calling
card->probe() / card->late_probe().
In that time, card->remove() will be called.
This patch adds card_probed parameter to judge it.

Fixes: bfce78a559655 ("ASoC: soc-core: tidyup soc_init_dai_link()")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/87o8xg4ltr.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/soc-core.c

index a149697e705d99ecd50b803fc2c04fd1b10c6645..977a7bfad51979a60c2ebdd09d75e04ae90cb9c5 100644 (file)
@@ -1940,7 +1940,8 @@ static void __soc_setup_card_name(char *name, int len,
        }
 }
 
-static void soc_cleanup_card_resources(struct snd_soc_card *card)
+static void soc_cleanup_card_resources(struct snd_soc_card *card,
+                                      int card_probed)
 {
        struct snd_soc_dai_link *link, *_link;
 
@@ -1969,17 +1970,19 @@ static void soc_cleanup_card_resources(struct snd_soc_card *card)
        soc_cleanup_card_debugfs(card);
 
        /* remove the card */
-       if (card->remove)
+       if (card_probed && card->remove)
                card->remove(card);
 }
 
 static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister)
 {
        if (card->instantiated) {
+               int card_probed = 1;
+
                card->instantiated = false;
                snd_soc_flush_all_delayed_work(card);
 
-               soc_cleanup_card_resources(card);
+               soc_cleanup_card_resources(card, card_probed);
                if (!unregister)
                        list_add(&card->list, &unbind_card_list);
        } else {
@@ -1992,7 +1995,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
 {
        struct snd_soc_pcm_runtime *rtd;
        struct snd_soc_dai_link *dai_link;
-       int ret, i;
+       int ret, i, card_probed = 0;
 
        mutex_lock(&client_mutex);
        mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
@@ -2044,6 +2047,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
                ret = card->probe(card);
                if (ret < 0)
                        goto probe_end;
+               card_probed = 1;
        }
 
        /* probe all components used by DAI links on this card */
@@ -2109,6 +2113,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
                        goto probe_end;
                }
        }
+       card_probed = 1;
 
        snd_soc_dapm_new_widgets(card);
 
@@ -2138,7 +2143,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
 
 probe_end:
        if (ret < 0)
-               soc_cleanup_card_resources(card);
+               soc_cleanup_card_resources(card, card_probed);
 
        mutex_unlock(&card->mutex);
        mutex_unlock(&client_mutex);