[PATCH] zd1211rw: Readd zd_addr_t cast

Robert P.J. Day's recent commit ("getting rid of all casts of
k[cmz]alloc() calls") introduced a sparse warning for zd1211rw,
related to our type-checking of addresses.

	zd_chip.c:116:15: warning: implicit cast to nocast type

This patch readds the type cast, it is correct.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c
index 78ea72f..953ac3a 100644
--- a/drivers/net/wireless/zd1211rw/zd_chip.c
+++ b/drivers/net/wireless/zd1211rw/zd_chip.c
@@ -101,7 +101,7 @@
 
 	/* Allocate a single memory block for values and addresses. */
 	count16 = 2*count;
-	a16 = kmalloc(count16 * (sizeof(zd_addr_t) + sizeof(u16)),
+	a16 = (zd_addr_t *) kmalloc(count16 * (sizeof(zd_addr_t) + sizeof(u16)),
 		                   GFP_NOFS);
 	if (!a16) {
 		dev_dbg_f(zd_chip_dev(chip),