[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/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;