[alsa-devel] Applied "ASoC: core: Adapt for debugfs API change" to the asoc tree

[Mark Brown]

The patch

   ASoC: core: Adapt for debugfs API change

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.2

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
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patches will not be replaced.

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Thanks,
Mark

>From c2c928c93173f220955030e8440517b87ec7df92 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie at kernel.org>
Date: Fri, 21 Jun 2019 12:33:56 +0100
Subject: [PATCH] ASoC: core: Adapt for debugfs API change

Back in ff9fb72bc07705c (debugfs: return error values, not NULL) the
debugfs APIs were changed to return error pointers rather than NULL
pointers on error, breaking the error checking in ASoC. Update the
code to use IS_ERR() and log the codes that are returned as part of
the error messages.

Fixes: ff9fb72bc07705c (debugfs: return error values, not NULL)
Signed-off-by: Mark Brown <broonie at kernel.org>
Cc: stable at vger.kernel.org
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/soc-core.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9138fcb15cd3..6aeba0d66ec5 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -158,9 +158,10 @@ static void soc_init_component_debugfs(struct snd_soc_component *component)
 				component->card->debugfs_card_root);
 	}
 
-	if (!component->debugfs_root) {
+	if (IS_ERR(component->debugfs_root)) {
 		dev_warn(component->dev,
-			"ASoC: Failed to create component debugfs directory\n");
+			"ASoC: Failed to create component debugfs directory: %ld\n",
+			PTR_ERR(component->debugfs_root));
 		return;
 	}
 
@@ -212,18 +213,21 @@ static void soc_init_card_debugfs(struct snd_soc_card *card)
 
 	card->debugfs_card_root = debugfs_create_dir(card->name,
 						     snd_soc_debugfs_root);
-	if (!card->debugfs_card_root) {
+	if (IS_ERR(card->debugfs_card_root)) {
 		dev_warn(card->dev,
-			 "ASoC: Failed to create card debugfs directory\n");
+			 "ASoC: Failed to create card debugfs directory: %ld\n",
+			 PTR_ERR(card->debugfs_card_root));
+		card->debugfs_card_root = NULL;
 		return;
 	}
 
 	card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
 						    card->debugfs_card_root,
 						    &card->pop_time);
-	if (!card->debugfs_pop_time)
+	if (IS_ERR(card->debugfs_pop_time))
 		dev_warn(card->dev,
-			 "ASoC: Failed to create pop time debugfs file\n");
+			 "ASoC: Failed to create pop time debugfs file: %ld\n",
+			 PTR_ERR(card->debugfs_pop_time));
 }
 
 static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
-- 
2.20.1