ipw2200: use kmalloc for large local variables

Fixed below compiler warning:

drivers/net/wireless/ipw2x00/ipw2200.c: In function ‘ipw_load_firmware’:
drivers/net/wireless/ipw2x00/ipw2200.c:3260: warning: the frame size of
1168 bytes is larger than 1024 bytes
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ipw2x00/ipw2200.c

@@ -3177,14 +3177,27 @@ static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
 	int total_nr = 0;
 	int i;
 	struct pci_pool *pool;
-	u32 *virts[CB_NUMBER_OF_ELEMENTS_SMALL];
-	dma_addr_t phys[CB_NUMBER_OF_ELEMENTS_SMALL];
+	void **virts;
+	dma_addr_t *phys;
 
 	IPW_DEBUG_TRACE("<< : \n");
 
+	virts = kmalloc(sizeof(void *) * CB_NUMBER_OF_ELEMENTS_SMALL,
+			GFP_KERNEL);
+	if (!virts)
+		return -ENOMEM;
+
+	phys = kmalloc(sizeof(dma_addr_t) * CB_NUMBER_OF_ELEMENTS_SMALL,
+			GFP_KERNEL);
+	if (!phys) {
+		kfree(virts);
+		return -ENOMEM;
+	}
 	pool = pci_pool_create("ipw2200", priv->pci_dev, CB_MAX_LENGTH, 0, 0);
 	if (!pool) {
 		IPW_ERROR("pci_pool_create failed\n");
+		kfree(phys);
+		kfree(virts);
 		return -ENOMEM;
 	}
 
@@ -3254,6 +3267,8 @@ static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
 		pci_pool_free(pool, virts[i], phys[i]);
 
 	pci_pool_destroy(pool);
+	kfree(phys);
+	kfree(virts);
 
 	return ret;
 }