diff --git a/drivers/net/wireless/ti/wl1251/event.c b/drivers/net/wireless/ti/wl1251/event.c
index e6d426edab56b..e945aafd88ee5 100644
--- a/drivers/net/wireless/ti/wl1251/event.c
+++ b/drivers/net/wireless/ti/wl1251/event.c
@@ -169,11 +169,9 @@ int wl1251_event_wait(struct wl1251 *wl, u32 mask, int timeout_ms)
 		msleep(1);
 
 		/* read from both event fields */
-		wl1251_mem_read(wl, wl->mbox_ptr[0], &events_vector,
-				sizeof(events_vector));
+		events_vector = wl1251_mem_read32(wl, wl->mbox_ptr[0]);
 		event = events_vector & mask;
-		wl1251_mem_read(wl, wl->mbox_ptr[1], &events_vector,
-				sizeof(events_vector));
+		events_vector = wl1251_mem_read32(wl, wl->mbox_ptr[1]);
 		event |= events_vector & mask;
 	} while (!event);
 
@@ -202,7 +200,7 @@ void wl1251_event_mbox_config(struct wl1251 *wl)
 
 int wl1251_event_handle(struct wl1251 *wl, u8 mbox_num)
 {
-	struct event_mailbox mbox;
+	struct event_mailbox *mbox;
 	int ret;
 
 	wl1251_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
@@ -210,12 +208,20 @@ int wl1251_event_handle(struct wl1251 *wl, u8 mbox_num)
 	if (mbox_num > 1)
 		return -EINVAL;
 
+	mbox = kmalloc(sizeof(*mbox), GFP_KERNEL);
+	if (!mbox) {
+		wl1251_error("can not allocate mbox buffer");
+		return -ENOMEM;
+	}
+
 	/* first we read the mbox descriptor */
-	wl1251_mem_read(wl, wl->mbox_ptr[mbox_num], &mbox,
-			    sizeof(struct event_mailbox));
+	wl1251_mem_read(wl, wl->mbox_ptr[mbox_num], mbox,
+			sizeof(*mbox));
 
 	/* process the descriptor */
-	ret = wl1251_event_process(wl, &mbox);
+	ret = wl1251_event_process(wl, mbox);
+	kfree(mbox);
+
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/net/wireless/ti/wl1251/io.c b/drivers/net/wireless/ti/wl1251/io.c
index 5ebe7958ed5c7..e8d567af74b4b 100644
--- a/drivers/net/wireless/ti/wl1251/io.c
+++ b/drivers/net/wireless/ti/wl1251/io.c
@@ -121,7 +121,13 @@ void wl1251_set_partition(struct wl1251 *wl,
 			  u32 mem_start, u32 mem_size,
 			  u32 reg_start, u32 reg_size)
 {
-	struct wl1251_partition partition[2];
+	struct wl1251_partition_set *partition;
+
+	partition = kmalloc(sizeof(*partition), GFP_KERNEL);
+	if (!partition) {
+		wl1251_error("can not allocate partition buffer");
+		return;
+	}
 
 	wl1251_debug(DEBUG_SPI, "mem_start %08X mem_size %08X",
 		     mem_start, mem_size);
@@ -164,10 +170,10 @@ void wl1251_set_partition(struct wl1251 *wl,
 			     reg_start, reg_size);
 	}
 
-	partition[0].start = mem_start;
-	partition[0].size  = mem_size;
-	partition[1].start = reg_start;
-	partition[1].size  = reg_size;
+	partition->mem.start = mem_start;
+	partition->mem.size  = mem_size;
+	partition->reg.start = reg_start;
+	partition->reg.size  = reg_size;
 
 	wl->physical_mem_addr = mem_start;
 	wl->physical_reg_addr = reg_start;
@@ -176,5 +182,7 @@ void wl1251_set_partition(struct wl1251 *wl,
 	wl->virtual_reg_addr = mem_size;
 
 	wl->if_ops->write(wl, HW_ACCESS_PART0_SIZE_ADDR, partition,
-		sizeof(partition));
+		sizeof(*partition));
+
+	kfree(partition);
 }
diff --git a/drivers/net/wireless/ti/wl1251/tx.c b/drivers/net/wireless/ti/wl1251/tx.c
index 98cd39619d579..e9dc3c72bb110 100644
--- a/drivers/net/wireless/ti/wl1251/tx.c
+++ b/drivers/net/wireless/ti/wl1251/tx.c
@@ -443,19 +443,25 @@ static void wl1251_tx_packet_cb(struct wl1251 *wl,
 void wl1251_tx_complete(struct wl1251 *wl)
 {
 	int i, result_index, num_complete = 0, queue_len;
-	struct tx_result result[FW_TX_CMPLT_BLOCK_SIZE], *result_ptr;
+	struct tx_result *result, *result_ptr;
 	unsigned long flags;
 
 	if (unlikely(wl->state != WL1251_STATE_ON))
 		return;
 
+	result = kmalloc_array(FW_TX_CMPLT_BLOCK_SIZE, sizeof(*result), GFP_KERNEL);
+	if (!result) {
+		wl1251_error("can not allocate result buffer");
+		return;
+	}
+
 	/* First we read the result */
-	wl1251_mem_read(wl, wl->data_path->tx_complete_addr,
-			    result, sizeof(result));
+	wl1251_mem_read(wl, wl->data_path->tx_complete_addr, result,
+			FW_TX_CMPLT_BLOCK_SIZE * sizeof(*result));
 
 	result_index = wl->next_tx_complete;
 
-	for (i = 0; i < ARRAY_SIZE(result); i++) {
+	for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) {
 		result_ptr = &result[result_index];
 
 		if (result_ptr->done_1 == 1 &&
@@ -538,6 +544,7 @@ void wl1251_tx_complete(struct wl1251 *wl)
 
 	}
 
+	kfree(result);
 	wl->next_tx_complete = result_index;
 }
 
