| Message ID | 20230901081908.44399-1-dmantipov@yandex.ru (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Felix Fietkau |
| Headers | show |
| Series | wifi: mt76: add DMA mapping error check in mt76_alloc_txwi() | expand |
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;
Add 'dma_mapping_error()' check in 'mt76_alloc_txwi()'. Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> --- drivers/net/wireless/mediatek/mt76/dma.c | 5 +++++ 1 file changed, 5 insertions(+)