linux-kernel - [PATCH 3.16.y-ckt 014/142] ALSA: seq: Drop superfluous error/debug messages after malloc failures

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Message-Id: <1458643271-4227-15-git-send-email-luis.henriques@canonical.com>
Date:	Tue, 22 Mar 2016 10:39:03 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Takashi Iwai <tiwai@...e.de>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 014/142] ALSA: seq: Drop superfluous error/debug messages after malloc failures

3.16.7-ckt26 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

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

commit 24db8bbaa3fcfaf0c2faccbff5864b58088ac1f6 upstream.

The kernel memory allocators already report the errors when the
requested allocation fails, thus we don't need to warn it again in
each caller side.

Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 sound/core/seq/seq_fifo.c   | 4 +---
 sound/core/seq/seq_memory.c | 8 ++------
 sound/core/seq/seq_ports.c  | 4 +---
 sound/core/seq/seq_prioq.c  | 4 +---
 sound/core/seq/seq_queue.c  | 4 +---
 sound/core/seq/seq_timer.c  | 4 +---
 6 files changed, 7 insertions(+), 21 deletions(-)

diff --git a/sound/core/seq/seq_fifo.c b/sound/core/seq/seq_fifo.c
index 53a403e17c5b..1d5acbe0c08b 100644
--- a/sound/core/seq/seq_fifo.c
+++ b/sound/core/seq/seq_fifo.c
@@ -33,10 +33,8 @@ struct snd_seq_fifo *snd_seq_fifo_new(int poolsize)
 	struct snd_seq_fifo *f;
 
 	f = kzalloc(sizeof(*f), GFP_KERNEL);
-	if (f == NULL) {
-		pr_debug("ALSA: seq: malloc failed for snd_seq_fifo_new() \n");
+	if (!f)
 		return NULL;
-	}
 
 	f->pool = snd_seq_pool_new(poolsize);
 	if (f->pool == NULL) {
diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
index 1e206de0c2dd..07002abdd9c7 100644
--- a/sound/core/seq/seq_memory.c
+++ b/sound/core/seq/seq_memory.c
@@ -387,10 +387,8 @@ int snd_seq_pool_init(struct snd_seq_pool *pool)
 		return 0;
 
 	pool->ptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size);
-	if (pool->ptr == NULL) {
-		pr_debug("ALSA: seq: malloc for sequencer events failed\n");
+	if (!pool->ptr)
 		return -ENOMEM;
-	}
 
 	/* add new cells to the free cell list */
 	spin_lock_irqsave(&pool->lock, flags);
@@ -463,10 +461,8 @@ struct snd_seq_pool *snd_seq_pool_new(int poolsize)
 
 	/* create pool block */
 	pool = kzalloc(sizeof(*pool), GFP_KERNEL);
-	if (pool == NULL) {
-		pr_debug("ALSA: seq: malloc failed for pool\n");
+	if (!pool)
 		return NULL;
-	}
 	spin_lock_init(&pool->lock);
 	pool->ptr = NULL;
 	pool->free = NULL;
diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c
index 2dcdf81e0abb..3c8630ff36af 100644
--- a/sound/core/seq/seq_ports.c
+++ b/sound/core/seq/seq_ports.c
@@ -141,10 +141,8 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
 
 	/* create a new port */
 	new_port = kzalloc(sizeof(*new_port), GFP_KERNEL);
-	if (! new_port) {
-		pr_debug("ALSA: seq: malloc failed for registering client port\n");
+	if (!new_port)
 		return NULL;	/* failure, out of memory */
-	}
 	/* init port data */
 	new_port->addr.client = client->number;
 	new_port->addr.port = -1;
diff --git a/sound/core/seq/seq_prioq.c b/sound/core/seq/seq_prioq.c
index 021b02bc9330..bc1c8488fc2a 100644
--- a/sound/core/seq/seq_prioq.c
+++ b/sound/core/seq/seq_prioq.c
@@ -59,10 +59,8 @@ struct snd_seq_prioq *snd_seq_prioq_new(void)
 	struct snd_seq_prioq *f;
 
 	f = kzalloc(sizeof(*f), GFP_KERNEL);
-	if (f == NULL) {
-		pr_debug("ALSA: seq: malloc failed for snd_seq_prioq_new()\n");
+	if (!f)
 		return NULL;
-	}
 	
 	spin_lock_init(&f->lock);
 	f->head = NULL;
diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
index 52defd86d8b4..77ec21420355 100644
--- a/sound/core/seq/seq_queue.c
+++ b/sound/core/seq/seq_queue.c
@@ -111,10 +111,8 @@ static struct snd_seq_queue *queue_new(int owner, int locked)
 	struct snd_seq_queue *q;
 
 	q = kzalloc(sizeof(*q), GFP_KERNEL);
-	if (q == NULL) {
-		pr_debug("ALSA: seq: malloc failed for snd_seq_queue_new()\n");
+	if (!q)
 		return NULL;
-	}
 
 	spin_lock_init(&q->owner_lock);
 	spin_lock_init(&q->check_lock);
diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c
index c943dc41c6fe..a2468f1101d1 100644
--- a/sound/core/seq/seq_timer.c
+++ b/sound/core/seq/seq_timer.c
@@ -56,10 +56,8 @@ struct snd_seq_timer *snd_seq_timer_new(void)
 	struct snd_seq_timer *tmr;
 	
 	tmr = kzalloc(sizeof(*tmr), GFP_KERNEL);
-	if (tmr == NULL) {
-		pr_debug("ALSA: seq: malloc failed for snd_seq_timer_new() \n");
+	if (!tmr)
 		return NULL;
-	}
 	spin_lock_init(&tmr->lock);
 
 	/* reset setup to defaults */