From: Florian Fainelli <[email protected]>
commit 5c5fa1f464ac954982df1d96b9f9a5103d21aedd upstream.
In case dma_mapping_error() returns an error in dma_rxfill, we would be
leaking a packet that we allocated with brcmu_pkt_buf_get_skb().
Reported-by: coverity (CID 1081819)
Fixes: 67d0cf50bd32 ("brcmsmac: Fix WARNING caused by lack of calls to
dma_mapping_error()")
Signed-off-by: Florian Fainelli <[email protected]>
Acked-by: Arend van Spriel <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Signed-off-by: Willy Tarreau <[email protected]>
---
drivers/net/wireless/brcm80211/brcmsmac/dma.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/dma.c
b/drivers/net/wireless/brcm80211/brcmsmac/dma.c
index 4fb9635..7660b52 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/dma.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/dma.c
@@ -1079,8 +1079,10 @@ bool dma_rxfill(struct dma_pub *pub)
pa = dma_map_single(di->dmadev, p->data, di->rxbufsize,
DMA_FROM_DEVICE);
- if (dma_mapping_error(di->dmadev, pa))
+ if (dma_mapping_error(di->dmadev, pa)) {
+ brcmu_pkt_buf_free_skb(p);
return false;
+ }
/* save the free packet pointer */
di->rxp[rxout] = p;
--
2.8.0.rc2.1.gbe9624a
