Add 'dma_mapping_error()' check in 'mt76_alloc_txwi()'.
Signed-off-by: Dmitry Antipov <[email protected]>
---
drivers/net/wireless/mediatek/mt76/dma.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 05d9ab3ce819..5af666f03398 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -53,6 +53,11 @@ mt76_alloc_txwi(struct mt76_dev *dev)
addr = dma_map_single(dev->dma_dev, txwi, dev->drv->txwi_size,
DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(dev->dma_dev, addr))) {
+ kfree(txwi);
+ return NULL;
+ }
+
t = (struct mt76_txwi_cache *)(txwi + dev->drv->txwi_size);
t->dma_addr = addr;
--
2.41.0