linux-kernel - [PATCH 2.6.32 37/55] ALSA: seq: Degrade the error message for too many opens

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Message-Id: <20160304153002.325849903@1wt.eu>
Date:	Fri, 04 Mar 2016 16:30:37 +0100
From:	Willy Tarreau <w@....eu>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Takashi Iwai <tiwai@...e.de>, Ben Hutchings <ben@...adent.org.uk>,
	Willy Tarreau <w@....eu>
Subject: [PATCH 2.6.32 37/55] ALSA: seq: Degrade the error message for too many
 opens

2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <tiwai@...e.de>

commit da10816e3d923565b470fec78a674baba794ed33 upstream.

ALSA OSS sequencer spews a kernel error message ("ALSA: seq_oss: too
many applications") when user-space tries to open more than the
limit.  This means that it can easily fill the log buffer.

Since it's merely a normal error, it's safe to suppress it via
pr_debug() instead.

Signed-off-by: Takashi Iwai <tiwai@...e.de>
[bwh: Backported to 3.2: this was still using snd_printk()]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: Willy Tarreau <w@....eu>
---
 sound/core/seq/oss/seq_oss_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c
index 1f133fe..335b7e1 100644
--- a/sound/core/seq/oss/seq_oss_init.c
+++ b/sound/core/seq/oss/seq_oss_init.c
@@ -194,7 +194,7 @@ snd_seq_oss_open(struct file *file, int level)
 
 	dp->index = i;
 	if (i >= SNDRV_SEQ_OSS_MAX_CLIENTS) {
-		snd_printk(KERN_ERR "too many applications\n");
+		pr_debug("ALSA: seq_oss: too many applications\n");
 		rc = -ENOMEM;
 		goto _error;
 	}
-- 
1.7.12.2.21.g234cd45.dirty