averello/linux-stable-mirror
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2026-09-22 09:34:56 +02:00
Code Issues Packages Projects Releases Wiki Activity

mwl8k: Add missing check after DMA map

Browse Source 
[ Upstream commit 50459501b9 ]

The DMA map functions can fail and should be tested for errors.
If the mapping fails, unmap and return an error.

Fixes: 788838ebe8 ("mwl8k: use pci_unmap_addr{,set}() to keep track of unmap addresses on rx")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://patch.msgid.link/20250709111339.25360-2-fourier.thomas@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thomas Fourier
2025-08-15 12:08:48 +02:00
committed by Greg Kroah-Hartman
parent 5cb4349d0c
commit 03df734805
1 changed files with 4 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/wireless/marvell/mwl8k.c
+4
View File
@@ -1222,6 +1222,10 @@ static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
addr = dma_map_single(&priv->pdev->dev, skb->data,
MWL8K_RX_MAXSZ, DMA_FROM_DEVICE);
if (dma_mapping_error(&priv->pdev->dev, addr)) {
kfree_skb(skb);
break;
}
rxq->rxd_count++;
rx = rxq->tail++;