Remove unneeded casts of (void *) pointers.

Signed-off-by: Domen Puncer <domen@coderock.org>

--- c/drivers/mtd/devices/doc2001.c	2004-12-02 23:16:12.000000000 +0100
+++ a/drivers/mtd/devices/doc2001.c	2004-12-03 11:24:24.000000000 +0100
@@ -335,23 +335,23 @@ static const char im_name[] = "DoCMil_in
  */
 static void DoCMil_init(struct mtd_info *mtd)
 {
-	struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
+	struct DiskOnChip *this = mtd->priv;
 	struct DiskOnChip *old = NULL;
 
 	/* We must avoid being called twice for the same device. */
 	if (docmillist)
-		old = (struct DiskOnChip *)docmillist->priv;
+		old = docmillist->priv;
 
 	while (old) {
 		if (DoCMil_is_alias(this, old)) {
 			printk(KERN_NOTICE "Ignoring DiskOnChip Millennium at "
 			       "0x%lX - already configured\n", this->physadr);
-			iounmap((void *)this->virtadr);
+			iounmap(this->virtadr);
 			kfree(mtd);
 			return;
 		}
 		if (old->nextdoc)
-			old = (struct DiskOnChip *)old->nextdoc->priv;
+			old = old->nextdoc->priv;
 		else
 			old = NULL;
 	}
@@ -392,7 +392,7 @@ static void DoCMil_init(struct mtd_info 
 
 	if (!this->totlen) {
 		kfree(mtd);
-		iounmap((void *)this->virtadr);
+		iounmap(this->virtadr);
 	} else {
 		this->nextdoc = docmillist;
 		docmillist = mtd;
@@ -416,7 +416,7 @@ static int doc_read_ecc (struct mtd_info
 	int i, ret;
 	volatile char dummy;
 	unsigned char syndrome[6];
-	struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
+	struct DiskOnChip *this = mtd->priv;
 	void __iomem *docptr = this->virtadr;
 	struct Nand *mychip = &this->chips[from >> (this->chipshift)];
 
@@ -542,7 +542,7 @@ static int doc_write_ecc (struct mtd_inf
 {
 	int i,ret = 0;
 	volatile char dummy;
-	struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
+	struct DiskOnChip *this = mtd->priv;
 	void __iomem *docptr = this->virtadr;
 	struct Nand *mychip = &this->chips[to >> (this->chipshift)];
 
@@ -677,7 +677,7 @@ static int doc_read_oob(struct mtd_info 
 	int i;
 #endif
 	volatile char dummy;
-	struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
+	struct DiskOnChip *this = mtd->priv;
 	void __iomem *docptr = this->virtadr;
 	struct Nand *mychip = &this->chips[ofs >> this->chipshift];
 
@@ -729,7 +729,7 @@ static int doc_write_oob(struct mtd_info
 #endif
 	volatile char dummy;
 	int ret = 0;
-	struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
+	struct DiskOnChip *this = mtd->priv;
 	void __iomem *docptr = this->virtadr;
 	struct Nand *mychip = &this->chips[ofs >> this->chipshift];
 
@@ -796,7 +796,7 @@ static int doc_write_oob(struct mtd_info
 int doc_erase (struct mtd_info *mtd, struct erase_info *instr)
 {
 	volatile char dummy;
-	struct DiskOnChip *this = (struct DiskOnChip *)mtd->priv;
+	struct DiskOnChip *this = mtd->priv;
 	__u32 ofs = instr->addr;
 	__u32 len = instr->len;
 	void __iomem *docptr = this->virtadr;
@@ -868,12 +868,12 @@ static void __exit cleanup_doc2001(void)
 	struct DiskOnChip *this;
 
 	while ((mtd=docmillist)) {
-		this = (struct DiskOnChip *)mtd->priv;
+		this = mtd->priv;
 		docmillist = this->nextdoc;
 			
 		del_mtd_device(mtd);
 			
-		iounmap((void *)this->virtadr);
+		iounmap(this->virtadr);
 		kfree(this->chips);
 		kfree(mtd);
 	}