ALSA: seq_oss: Drop superfluous error/debug messages after malloc failures

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@suse.de>

sound/core/seq/oss/seq_oss_init.c

@@ -188,10 +188,8 @@ snd_seq_oss_open(struct file *file, int level)
 	struct seq_oss_devinfo *dp;
 
 	dp = kzalloc(sizeof(*dp), GFP_KERNEL);
-	if (!dp) {
-		pr_err("ALSA: seq_oss: can't malloc device info\n");
+	if (!dp)
 		return -ENOMEM;
-	}
 
 	dp->cseq = system_client;
 	dp->port = -1;

sound/core/seq/oss/seq_oss_midi.c

@@ -173,10 +173,9 @@ snd_seq_oss_midi_check_new_port(struct snd_seq_port_info *pinfo)
 	/*
 	 * allocate midi info record
 	 */
-	if ((mdev = kzalloc(sizeof(*mdev), GFP_KERNEL)) == NULL) {
-		pr_err("ALSA: seq_oss: can't malloc midi info\n");
+	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
+	if (!mdev)
 		return -ENOMEM;
-	}
 
 	/* copy the port information */
 	mdev->client = pinfo->addr.client;

sound/core/seq/oss/seq_oss_readq.c

@@ -47,13 +47,12 @@ snd_seq_oss_readq_new(struct seq_oss_devinfo *dp, int maxlen)
 {
 	struct seq_oss_readq *q;
 
-	if ((q = kzalloc(sizeof(*q), GFP_KERNEL)) == NULL) {
-		pr_err("ALSA: seq_oss: can't malloc read queue\n");
+	q = kzalloc(sizeof(*q), GFP_KERNEL);
+	if (!q)
 		return NULL;
-	}
 
-	if ((q->q = kcalloc(maxlen, sizeof(union evrec), GFP_KERNEL)) == NULL) {
-		pr_err("ALSA: seq_oss: can't malloc read queue buffer\n");
+	q->q = kcalloc(maxlen, sizeof(union evrec), GFP_KERNEL);
+	if (!q->q) {
 		kfree(q);
 		return NULL;
 	}

sound/core/seq/oss/seq_oss_synth.c

@@ -106,10 +106,9 @@ snd_seq_oss_synth_probe(struct device *_dev)
 	struct snd_seq_oss_reg *reg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
 	unsigned long flags;
 
-	if ((rec = kzalloc(sizeof(*rec), GFP_KERNEL)) == NULL) {
-		pr_err("ALSA: seq_oss: can't malloc synth info\n");
+	rec = kzalloc(sizeof(*rec), GFP_KERNEL);
+	if (!rec)
 		return -ENOMEM;
-	}
 	rec->seq_device = -1;
 	rec->synth_type = reg->type;
 	rec->synth_subtype = reg->subtype;
@@ -249,7 +248,6 @@ snd_seq_oss_synth_setup(struct seq_oss_devinfo *dp)
 		if (info->nr_voices > 0) {
 			info->ch = kcalloc(info->nr_voices, sizeof(struct seq_oss_chinfo), GFP_KERNEL);
 			if (!info->ch) {
-				pr_err("ALSA: seq_oss: Cannot malloc voices\n");
 				rec->oper.close(&info->arg);
 				module_put(rec->oper.owner);
 				snd_use_lock_free(&rec->use_lock);