[PATCH] sound: Remove unneeded kmalloc() return value casts

Get rid of unnessesary casts of kmalloc() return value in sound/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index 6b7a367..87b47c9 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -631,7 +631,8 @@
 		return -EINVAL;
 	}
 	if (params->buffer_size != runtime->buffer_size) {
-		if ((newbuf = (char *) kmalloc(params->buffer_size, GFP_KERNEL)) == NULL)
+		newbuf = kmalloc(params->buffer_size, GFP_KERNEL);
+		if (!newbuf)
 			return -ENOMEM;
 		kfree(runtime->buffer);
 		runtime->buffer = newbuf;
@@ -657,7 +658,8 @@
 		return -EINVAL;
 	}
 	if (params->buffer_size != runtime->buffer_size) {
-		if ((newbuf = (char *) kmalloc(params->buffer_size, GFP_KERNEL)) == NULL)
+		newbuf = kmalloc(params->buffer_size, GFP_KERNEL);
+		if (!newbuf)
 			return -ENOMEM;
 		kfree(runtime->buffer);
 		runtime->buffer = newbuf;
diff --git a/sound/oss/dmasound/dmasound_awacs.c b/sound/oss/dmasound/dmasound_awacs.c
index 6ba8d6f..3bbc810 100644
--- a/sound/oss/dmasound/dmasound_awacs.c
+++ b/sound/oss/dmasound/dmasound_awacs.c
@@ -2798,7 +2798,7 @@
 			DBDMA_ALIGN(beep_dbdma_cmd_space);
 	/* set up emergency dbdma cmd */
 	emergency_dbdma_cmd = beep_dbdma_cmd+1 ;
-	beep_buf = (short *) kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
+	beep_buf = kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
 	if (beep_buf == NULL) {
 		printk(KERN_ERR "dmasound_pmac: no memory for beep buffer\n");
 		kfree(beep_dbdma_cmd_space) ;
diff --git a/sound/oss/emu10k1/midi.c b/sound/oss/emu10k1/midi.c
index 959a967..25ae8e4 100644
--- a/sound/oss/emu10k1/midi.c
+++ b/sound/oss/emu10k1/midi.c
@@ -65,7 +65,8 @@
 
 	init_midi_hdr(midihdr);
 
-	if ((midihdr->data = (u8 *) kmalloc(MIDIIN_BUFLEN, GFP_KERNEL)) == NULL) {
+	midihdr->data = kmalloc(MIDIIN_BUFLEN, GFP_KERNEL);
+	if (!midihdr->data) {
 		ERROR();
 		kfree(midihdr);
 		return -1;
@@ -334,7 +335,8 @@
 	midihdr->bytesrecorded = 0;
 	midihdr->flags = 0;
 
-	if ((midihdr->data = (u8 *) kmalloc(count, GFP_KERNEL)) == NULL) {
+	midihdr->data = kmalloc(count, GFP_KERNEL);
+	if (!midihdr->data) {
 		ERROR();
 		kfree(midihdr);
 		return -EINVAL;
@@ -545,7 +547,8 @@
 	midihdr->bytesrecorded = 0;
 	midihdr->flags = 0;
 
-	if ((midihdr->data = (u8 *) kmalloc(1, GFP_KERNEL)) == NULL) {
+	midihdr->data = kmalloc(1, GFP_KERNEL);
+	if (!midihdr->data) {
 		ERROR();
 		kfree(midihdr);
 		return -EINVAL;
diff --git a/sound/oss/sh_dac_audio.c b/sound/oss/sh_dac_audio.c
index 8a9917c9..3f7427c 100644
--- a/sound/oss/sh_dac_audio.c
+++ b/sound/oss/sh_dac_audio.c
@@ -289,7 +289,7 @@
 
 	in_use = 0;
 
-	data_buffer = (char *)kmalloc(BUFFER_SIZE, GFP_KERNEL);
+	data_buffer = kmalloc(BUFFER_SIZE, GFP_KERNEL);
 	if (data_buffer == NULL)
 		return -ENOMEM;