staging: wilc1000: remove unnecessary cast

kmalloc() returns void pointer.

Signed-off-by: ChengYi He <chengyihetaipei@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/linux_mon.c

@@ -258,7 +258,7 @@ static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
 	len += sizeof(struct tx_complete_mon_data *);
 	#endif
 
-	mgmt_tx->buff = (char *)kmalloc(len, GFP_ATOMIC);
+	mgmt_tx->buff = kmalloc(len, GFP_ATOMIC);
 	if (mgmt_tx->buff == NULL) {
 		PRINT_ER("Failed to allocate memory for mgmt_tx buff\n");
 		return WILC_FAIL;

drivers/staging/wilc1000/linux_wlan.c

@@ -580,7 +580,7 @@ static void linux_wlan_dbg(uint8_t *buff)
 static void *linux_wlan_malloc_atomic(uint32_t sz)
 {
 	char *pntr = NULL;
-	pntr = (char *)kmalloc(sz, GFP_ATOMIC);
+	pntr = kmalloc(sz, GFP_ATOMIC);
 	PRINT_D(MEM_DBG, "Allocating %d bytes at address %p\n", sz, pntr);
 	return (void *)pntr;
 
@@ -588,7 +588,7 @@ static void *linux_wlan_malloc_atomic(uint32_t sz)
 static void *linux_wlan_malloc(uint32_t sz)
 {
 	char *pntr = NULL;
-	pntr = (char *)kmalloc(sz, GFP_KERNEL);
+	pntr = kmalloc(sz, GFP_KERNEL);
 	PRINT_D(MEM_DBG, "Allocating %d bytes at address %p\n", sz, pntr);
 	return (void *)pntr;
 }
@@ -605,7 +605,7 @@ void linux_wlan_free(void *vp)
 static void *internal_alloc(uint32_t size, uint32_t flag)
 {
 	char *pntr = NULL;
-	pntr = (char *)kmalloc(size, flag);
+	pntr = kmalloc(size, flag);
 	PRINT_D(MEM_DBG, "Allocating %d bytes at address %p\n", size, pntr);
 	return (void *)pntr;
 }