[PATCH v0 23/42] ASoC: soc-jack: Check notifier registration return value

[Borislav Petkov <bp@xxxxxxxxx>]

From: Borislav Petkov <bp@xxxxxxx>

Avoid homegrown notifier registration checks.

No functional changes.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: alsa-devel@xxxxxxxxxxxxxxxx
---
 sound/soc/soc-jack.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index d798765d168c..0875f5022066 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -181,7 +181,8 @@ EXPORT_SYMBOL_GPL(snd_soc_jack_add_pins);
 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 				    struct notifier_block *nb)
 {
-	blocking_notifier_chain_register(&jack->notifier, nb);
+	if (blocking_notifier_chain_register(&jack->notifier, nb))
+		pr_warn("Jack status notifier already registered\n");
 }
 EXPORT_SYMBOL_GPL(snd_soc_jack_notifier_register);
 
-- 
2.29.2