[PATCH] getting rid of all casts of k[cmz]alloc() calls

Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

30 files changed, 40 insertions, 40 deletions

diff --git a/arch/arm/kernel/apm.c b/arch/arm/kernel/apm.c
index a11fb9a40c04..2c37b70b17ab 100644
--- a/arch/arm/kernel/apm.c
+++ b/arch/arm/kernel/apm.c
@@ -423,7 +423,7 @@ static int apm_open(struct inode * inode, struct file * filp)
 {
 	struct apm_user *as;
 
-	as = (struct apm_user *)kzalloc(sizeof(*as), GFP_KERNEL);
+	as = kzalloc(sizeof(*as), GFP_KERNEL);
 	if (as) {
 		/*
 		 * XXX - this is a tiny bit broken, when we consider BSD
diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index a786f769035d..71257e3d513f 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -353,7 +353,7 @@ int ecard_readchunk(struct in_chunk_dir *cd, ecard_t *ec, int id, int num)
 		}
 		if (c_id(&excd) == 0x80) { /* loader */
 			if (!ec->loader) {
-				ec->loader = (loader_t)kmalloc(c_len(&excd),
+				ec->loader = kmalloc(c_len(&excd),
 							       GFP_KERNEL);
 				if (ec->loader)
 					ecard_readbytes(ec->loader, ec,
diff --git a/arch/arm26/kernel/ecard.c b/arch/arm26/kernel/ecard.c
index 43dd41be71fb..9dbc17247c6f 100644
--- a/arch/arm26/kernel/ecard.c
+++ b/arch/arm26/kernel/ecard.c
@@ -215,7 +215,7 @@ int ecard_readchunk(struct in_chunk_dir *cd, ecard_t *ec, int id, int num)
 		}
 		if (c_id(&excd) == 0x80) { /* loader */
 			if (!ec->loader) {
-				ec->loader = (loader_t)kmalloc(c_len(&excd),
+				ec->loader = kmalloc(c_len(&excd),
 							       GFP_KERNEL);
 				if (ec->loader)
 					ecard_readbytes(ec->loader, ec,
diff --git a/arch/arm26/kernel/irq.c b/arch/arm26/kernel/irq.c
index d87d68b77d66..d53382c83bf9 100644
--- a/arch/arm26/kernel/irq.c
+++ b/arch/arm26/kernel/irq.c
@@ -545,7 +545,7 @@ int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_
 	    (irq_flags & IRQF_SHARED && !dev_id))
 		return -EINVAL;
 
-	action = (struct irqaction *)kmalloc(sizeof(struct irqaction), GFP_KERNEL);
+	action = kmalloc(sizeof(struct irqaction), GFP_KERNEL);
 	if (!action)
 		return -ENOMEM;
 
diff --git a/arch/cris/arch-v10/drivers/axisflashmap.c b/arch/cris/arch-v10/drivers/axisflashmap.c
index 4fa81abab0c7..ffade19a14e6 100644
--- a/arch/cris/arch-v10/drivers/axisflashmap.c
+++ b/arch/cris/arch-v10/drivers/axisflashmap.c
@@ -516,7 +516,7 @@ static int __init init_axis_flash(void)
 #else
 		struct mtd_info *mtd_ram;
 
-		mtd_ram = (struct mtd_info *)kmalloc(sizeof(struct mtd_info),
+		mtd_ram = kmalloc(sizeof(struct mtd_info),
 						     GFP_KERNEL);
 		if (!mtd_ram) {
 			panic("axisflashmap couldn't allocate memory for "
diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index fcba6632ed7b..9aba18b931dd 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -440,7 +440,7 @@ gpio_open(struct inode *inode, struct file *filp)
 	if (p > GPIO_MINOR_LAST)
 		return -EINVAL;
 
-	priv = (struct gpio_private *)kmalloc(sizeof(struct gpio_private), 
+	priv = kmalloc(sizeof(struct gpio_private),
 					      GFP_KERNEL);
 
 	if (!priv)
diff --git a/arch/cris/arch-v32/drivers/axisflashmap.c b/arch/cris/arch-v32/drivers/axisflashmap.c
index 41952320e00a..5180d45412fc 100644
--- a/arch/cris/arch-v32/drivers/axisflashmap.c
+++ b/arch/cris/arch-v32/drivers/axisflashmap.c
@@ -427,7 +427,7 @@ static int __init init_axis_flash(void)
 #else
 		struct mtd_info *mtd_ram;
 
-		mtd_ram = (struct mtd_info *)kmalloc(sizeof(struct mtd_info),
+		mtd_ram = kmalloc(sizeof(struct mtd_info),
 						     GFP_KERNEL);
 		if (!mtd_ram) {
 			panic("axisflashmap couldn't allocate memory for "
diff --git a/arch/cris/arch-v32/drivers/gpio.c b/arch/cris/arch-v32/drivers/gpio.c
index c3f876b4da6b..08d36f0955c6 100644
--- a/arch/cris/arch-v32/drivers/gpio.c
+++ b/arch/cris/arch-v32/drivers/gpio.c
@@ -423,7 +423,7 @@ gpio_open(struct inode *inode, struct file *filp)
 	if (p > GPIO_MINOR_LAST)
 		return -EINVAL;
 
-	priv = (struct gpio_private *)kmalloc(sizeof(struct gpio_private),
+	priv = kmalloc(sizeof(struct gpio_private),
 					      GFP_KERNEL);
 
 	if (!priv)
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index 99e59b3eacf8..7cd6ac803409 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -686,7 +686,7 @@ keep_debug_flags(unsigned long oldccs, unsigned long oldspc,
 int __init
 cris_init_signal(void)
 {
-	u16* data = (u16*)kmalloc(PAGE_SIZE, GFP_KERNEL);
+	u16* data = kmalloc(PAGE_SIZE, GFP_KERNEL);
 
 	/* This is movu.w __NR_sigreturn, r9; break 13; */
 	data[0] = 0x9c5f;
diff --git a/arch/cris/kernel/profile.c b/arch/cris/kernel/profile.c
index 69c52189f044..f60ab785f235 100644
--- a/arch/cris/kernel/profile.c
+++ b/arch/cris/kernel/profile.c
@@ -59,7 +59,7 @@ static int
 __init init_cris_profile(void)
 {
   struct proc_dir_entry *entry;
-  sample_buffer = (char*)kmalloc(SAMPLE_BUFFER_SIZE, GFP_KERNEL);
+  sample_buffer = kmalloc(SAMPLE_BUFFER_SIZE, GFP_KERNEL);
   sample_buffer_pos = sample_buffer;
   entry = create_proc_entry("system_profile", S_IWUSR | S_IRUGO, NULL);
   if (entry) {
diff --git a/arch/h8300/kernel/ints.c b/arch/h8300/kernel/ints.c
index 1bfc77e391d5..587ef7f4fcc7 100644
--- a/arch/h8300/kernel/ints.c
+++ b/arch/h8300/kernel/ints.c
@@ -141,7 +141,7 @@ int request_irq(unsigned int irq,
 		return -EBUSY;
 
 	if (use_kmalloc)
-		irq_handle = (irq_handler_t *)kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
+		irq_handle = kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
 	else {
 		/* use bootmem allocater */
 		irq_handle = (irq_handler_t *)alloc_bootmem(sizeof(irq_handler_t));
diff --git a/arch/h8300/platform/h8s/ints.c b/arch/h8300/platform/h8s/ints.c
index 270440de4610..567f681ddfec 100644
--- a/arch/h8300/platform/h8s/ints.c
+++ b/arch/h8300/platform/h8s/ints.c
@@ -176,7 +176,7 @@ int request_irq(unsigned int irq,
 	}		
 
 	if (use_kmalloc)
-		irq_handle = (irq_handler_t *)kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
+		irq_handle = kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
 	else {
 		/* use bootmem allocater */
 		irq_handle = (irq_handler_t *)alloc_bootmem(sizeof(irq_handler_t));
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index a97847da9ed5..b75cff25de4b 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -1604,7 +1604,7 @@ static int do_open(struct inode * inode, struct file * filp)
 {
 	struct apm_user *	as;
 
-	as = (struct apm_user *)kmalloc(sizeof(*as), GFP_KERNEL);
+	as = kmalloc(sizeof(*as), GFP_KERNEL);
 	if (as == NULL) {
 		printk(KERN_ERR "apm: cannot allocate struct of size %d bytes\n",
 		       sizeof(*as));
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index 462ea178f49a..33367996d72d 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -189,7 +189,7 @@ static void print_pci_topology(struct seq_file *s)
 	int e;
 
 	for (sz = PAGE_SIZE; sz < 16 * PAGE_SIZE; sz += PAGE_SIZE) {
-		if (!(p = (char *)kmalloc(sz, GFP_KERNEL)))
+		if (!(p = kmalloc(sz, GFP_KERNEL)))
 			break;
 		e = ia64_sn_ioif_get_pci_topology(__pa(p), sz);
 		if (e == SALRET_OK)
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c
index b54ef1726c55..46b7d6035aab 100644
--- a/arch/m68k/mm/kmap.c
+++ b/arch/m68k/mm/kmap.c
@@ -59,7 +59,7 @@ static struct vm_struct *get_io_area(unsigned long size)
 	unsigned long addr;
 	struct vm_struct **p, *tmp, *area;
 
-	area = (struct vm_struct *)kmalloc(sizeof(*area), GFP_KERNEL);
+	area = kmalloc(sizeof(*area), GFP_KERNEL);
 	if (!area)
 		return NULL;
 	addr = KMAP_START;
diff --git a/arch/mips/kernel/apm.c b/arch/mips/kernel/apm.c
index 528e731049c1..ba16d07588cb 100644
--- a/arch/mips/kernel/apm.c
+++ b/arch/mips/kernel/apm.c
@@ -356,7 +356,7 @@ static int apm_open(struct inode * inode, struct file * filp)
 {
 	struct apm_user *as;
 
-	as = (struct apm_user *)kzalloc(sizeof(*as), GFP_KERNEL);
+	as = kzalloc(sizeof(*as), GFP_KERNEL);
 	if (as) {
 		/*
 		 * XXX - this is a tiny bit broken, when we consider BSD
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
index d88309209f56..04c2ff444396 100644
--- a/arch/parisc/hpux/sys_hpux.c
+++ b/arch/parisc/hpux/sys_hpux.c
@@ -475,7 +475,7 @@ int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
 		printk(KERN_DEBUG "len of arg1 = %d\n", len);
 		if (len == 0)
 			return 0;
-		fsname = (char *) kmalloc(len, GFP_KERNEL);
+		fsname = kmalloc(len, GFP_KERNEL);
 		if ( !fsname ) {
 			printk(KERN_DEBUG "failed to kmalloc fsname\n");
 			return 0;
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 920bdbf8404f..c10ab47d81fa 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -343,7 +343,7 @@ void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct
 	struct pt_regs *r = &t->thread.regs;
 	struct pt_regs *r2;
 
-	r2 = (struct pt_regs *)kmalloc(sizeof(struct pt_regs), GFP_KERNEL);
+	r2 = kmalloc(sizeof(struct pt_regs), GFP_KERNEL);
 	if (!r2)
 		return;
 	*r2 = *r;
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 6960f090991e..869cebbba967 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -505,7 +505,7 @@ static int nvram_scan_partitions(void)
 		return -ENODEV;
 	total_size = ppc_md.nvram_size();
 	
-	header = (char *) kmalloc(NVRAM_HEADER_LEN, GFP_KERNEL);
+	header = kmalloc(NVRAM_HEADER_LEN, GFP_KERNEL);
 	if (!header) {
 		printk(KERN_ERR "nvram_scan_partitions: Failed kmalloc\n");
 		return -ENOMEM;
@@ -574,7 +574,7 @@ static int __init nvram_init(void)
 	}
   	
   	/* initialize our anchor for the nvram partition list */
-  	nvram_part = (struct nvram_partition *) kmalloc(sizeof(struct nvram_partition), GFP_KERNEL);
+  	nvram_part = kmalloc(sizeof(struct nvram_partition), GFP_KERNEL);
   	if (!nvram_part) {
   		printk(KERN_ERR "nvram_init: Failed kmalloc\n");
   		return -ENOMEM;
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 8336deafc624..2847cd51a2d7 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -670,7 +670,7 @@ pcibios_make_OF_bus_map(void)
 	struct pci_controller* hose;
 	struct property *map_prop;
 
-	pci_to_OF_bus_map = (u8*)kmalloc(pci_bus_count, GFP_KERNEL);
+	pci_to_OF_bus_map = kmalloc(pci_bus_count, GFP_KERNEL);
 	if (!pci_to_OF_bus_map) {
 		printk(KERN_ERR "Can't allocate OF bus map !\n");
 		return;
diff --git a/arch/powerpc/mm/imalloc.c b/arch/powerpc/mm/imalloc.c
index add8c1a9af68..c831815c31f0 100644
--- a/arch/powerpc/mm/imalloc.c
+++ b/arch/powerpc/mm/imalloc.c
@@ -138,7 +138,7 @@ static struct vm_struct * split_im_region(unsigned long v_addr,
 	struct vm_struct *vm2 = NULL;
 	struct vm_struct *new_vm = NULL;
 	
-	vm1 = (struct vm_struct *) kmalloc(sizeof(*vm1), GFP_KERNEL);
+	vm1 = kmalloc(sizeof(*vm1), GFP_KERNEL);
 	if (vm1	== NULL) {
 		printk(KERN_ERR "%s() out of memory\n", __FUNCTION__);
 		return NULL;
@@ -172,7 +172,7 @@ static struct vm_struct * split_im_region(unsigned long v_addr,
 		 * uppermost remainder, and use existing parent one for the
 		 * lower remainder of parent range
 		 */
-		vm2 = (struct vm_struct *) kmalloc(sizeof(*vm2), GFP_KERNEL);
+		vm2 = kmalloc(sizeof(*vm2), GFP_KERNEL);
 		if (vm2 == NULL) {
 			printk(KERN_ERR "%s() out of memory\n", __FUNCTION__);
 			kfree(vm1);
@@ -206,7 +206,7 @@ static struct vm_struct * __add_new_im_area(unsigned long req_addr,
 			break;
 	}
 	
-	area = (struct vm_struct *) kmalloc(sizeof(*area), GFP_KERNEL);
+	area = kmalloc(sizeof(*area), GFP_KERNEL);
 	if (!area)
 		return NULL;
 	area->flags = 0;
diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c
index b6b462d3c604..f2bae04424f8 100644
--- a/arch/powerpc/platforms/pseries/eeh_cache.c
+++ b/arch/powerpc/platforms/pseries/eeh_cache.c
@@ -153,7 +153,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
 			return piar;
 		}
 	}
-	piar = (struct pci_io_addr_range *)kmalloc(sizeof(struct pci_io_addr_range), GFP_ATOMIC);
+	piar = kmalloc(sizeof(struct pci_io_addr_range), GFP_ATOMIC);
 	if (!piar)
 		return NULL;
 
diff --git a/arch/ppc/8260_io/fcc_enet.c b/arch/ppc/8260_io/fcc_enet.c
index 709952c25f29..06b84c372e58 100644
--- a/arch/ppc/8260_io/fcc_enet.c
+++ b/arch/ppc/8260_io/fcc_enet.c
@@ -1892,10 +1892,10 @@ init_fcc_param(fcc_info_t *fip, struct net_device *dev,
 	/* Allocate space for the buffer descriptors from regular memory.
 	 * Initialize base addresses for the buffer descriptors.
 	 */
-	cep->rx_bd_base = (cbd_t *)kmalloc(sizeof(cbd_t) * RX_RING_SIZE,
+	cep->rx_bd_base = kmalloc(sizeof(cbd_t) * RX_RING_SIZE,
 			GFP_KERNEL | GFP_DMA);
 	ep->fen_genfcc.fcc_rbase = __pa(cep->rx_bd_base);
-	cep->tx_bd_base = (cbd_t *)kmalloc(sizeof(cbd_t) * TX_RING_SIZE,
+	cep->tx_bd_base = kmalloc(sizeof(cbd_t) * TX_RING_SIZE,
 			GFP_KERNEL | GFP_DMA);
 	ep->fen_genfcc.fcc_tbase = __pa(cep->tx_bd_base);
 
diff --git a/arch/ppc/8xx_io/cs4218_tdm.c b/arch/ppc/8xx_io/cs4218_tdm.c
index c71ef3c2e7bf..b7bb5f0b3c5f 100644
--- a/arch/ppc/8xx_io/cs4218_tdm.c
+++ b/arch/ppc/8xx_io/cs4218_tdm.c
@@ -2601,7 +2601,7 @@ int __init tdm8xx_sound_init(void)
 	/* Initialize beep stuff */
 	orig_mksound = kd_mksound;
 	kd_mksound = cs_mksound;
-	beep_buf = (short *) kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
+	beep_buf = kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
 	if (beep_buf == NULL)
 		printk(KERN_WARNING "dmasound: no memory for "
 		       "beep buffer\n");
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index ef5266fbce62..bb57bc0e3fc8 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -191,13 +191,13 @@ debug_areas_alloc(int pages_per_area, int nr_areas)
 	debug_entry_t*** areas;
 	int i,j;
 
-	areas = (debug_entry_t ***) kmalloc(nr_areas *
+	areas = kmalloc(nr_areas *
 					sizeof(debug_entry_t**),
 					GFP_KERNEL);
 	if (!areas)
 		goto fail_malloc_areas;
 	for (i = 0; i < nr_areas; i++) {
-		areas[i] = (debug_entry_t**) kmalloc(pages_per_area *
+		areas[i] = kmalloc(pages_per_area *
 				sizeof(debug_entry_t*),GFP_KERNEL);
 		if (!areas[i]) {
 			goto fail_malloc_areas2;
@@ -242,7 +242,7 @@ debug_info_alloc(char *name, int pages_per_area, int nr_areas, int buf_size,
 
 	/* alloc everything */
 
-	rc = (debug_info_t*) kmalloc(sizeof(debug_info_t), GFP_KERNEL);
+	rc = kmalloc(sizeof(debug_info_t), GFP_KERNEL);
 	if(!rc)
 		goto fail_malloc_rc;
 	rc->active_entries = kcalloc(nr_areas, sizeof(int), GFP_KERNEL);
@@ -634,7 +634,7 @@ found:
 		rc = -ENOMEM;
 		goto out;
 	}
-	p_info = (file_private_info_t *) kmalloc(sizeof(file_private_info_t),
+	p_info = kmalloc(sizeof(file_private_info_t),
 						GFP_KERNEL);
 	if(!p_info){
 		if(debug_info_snapshot)
diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
index 4faf96f8a834..bc5beaa8f98e 100644
--- a/arch/s390/kernel/s390_ext.c
+++ b/arch/s390/kernel/s390_ext.c
@@ -37,7 +37,7 @@ int register_external_interrupt(__u16 code, ext_int_handler_t handler)
         ext_int_info_t *p;
         int index;
 
-	p = (ext_int_info_t *) kmalloc(sizeof(ext_int_info_t), GFP_ATOMIC);
+	p = kmalloc(sizeof(ext_int_info_t), GFP_ATOMIC);
         if (p == NULL)
                 return -ENOMEM;
         p->code = code;
diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index c8cb211b9072..5b4841d067c1 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -425,7 +425,7 @@ int request_fast_irq(unsigned int irq,
 	}
 	
 	if (action == NULL)
-	    action = (struct irqaction *)kmalloc(sizeof(struct irqaction),
+	    action = kmalloc(sizeof(struct irqaction),
 						 GFP_ATOMIC);
 	
 	if (!action) { 
@@ -528,7 +528,7 @@ int request_irq(unsigned int irq,
 	}
 	
 	if (action == NULL)
-		action = (struct irqaction *)kmalloc(sizeof(struct irqaction),
+		action = kmalloc(sizeof(struct irqaction),
 						     GFP_ATOMIC);
 	
 	if (!action) { 
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index cf1b8baa57ea..0e27e226e0e2 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -327,7 +327,7 @@ int sun4d_request_irq(unsigned int irq,
 	}
 	
 	if (action == NULL)
-		action = (struct irqaction *)kmalloc(sizeof(struct irqaction),
+		action = kmalloc(sizeof(struct irqaction),
 						     GFP_ATOMIC);
 	
 	if (!action) { 
diff --git a/arch/sparc64/kernel/sys_sunos32.c b/arch/sparc64/kernel/sys_sunos32.c
index 4446f66590fa..2ebc2c051383 100644
--- a/arch/sparc64/kernel/sys_sunos32.c
+++ b/arch/sparc64/kernel/sys_sunos32.c
@@ -1055,7 +1055,7 @@ asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4)
 		break;
 	case 2:
 		rval = -EFAULT;
-		kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3,
+		kmbuf = kmalloc(sizeof(struct msgbuf) + arg3,
 						 GFP_KERNEL);
 		if (!kmbuf)
 			break;
@@ -1078,7 +1078,7 @@ asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4)
 		break;
 	case 3:
 		rval = -EFAULT;
-		kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3,
+		kmbuf = kmalloc(sizeof(struct msgbuf) + arg3,
 						 GFP_KERNEL);
 		if (!kmbuf || sunos_msgbuf_get((struct msgbuf32 __user *)(unsigned long)arg2,
 					       kmbuf, arg3))
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c
index 49057d8bc668..5db7737df0ff 100644
--- a/arch/um/sys-i386/ldt.c
+++ b/arch/um/sys-i386/ldt.c
@@ -166,7 +166,7 @@ static long read_ldt_from_host(void __user * ptr, unsigned long bytecount)
 	struct ptrace_ldt ptrace_ldt = (struct ptrace_ldt) {
 			.func = 0,
 			.bytecount = bytecount,
-			.ptr = (void *)kmalloc(bytecount, GFP_KERNEL)};
+			.ptr = kmalloc(bytecount, GFP_KERNEL)};
 	u32 cpu;
 
 	if(ptrace_ldt.ptr == NULL)
@@ -426,7 +426,7 @@ void ldt_get_host_info(void)
 		host_ldt_entries = dummy_list;
 	else {
 		size = (size + 1) * sizeof(dummy_list[0]);
-		host_ldt_entries = (short *)kmalloc(size, GFP_KERNEL);
+		host_ldt_entries = kmalloc(size, GFP_KERNEL);
 		if(host_ldt_entries == NULL) {
 			printk("ldt_get_host_info: couldn't allocate host ldt list\n");
 			goto out_free;