[PATCH] net: stmmac: fix RX DMA leak on TX alloc failure
From: Abid Ali via B4 Relay
Date: Sat Apr 25 2026 - 08:39:02 EST
From: Abid Ali <dev.taqnialabs@xxxxxxxxx>
Free RX DMA resources when alloc_dma_tx_desc_resources() fails in
alloc_dma_desc_resources().
Signed-off-by: Abid Ali <dev.taqnialabs@xxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 13d3cac05..8bb843b55 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2370,8 +2370,12 @@ static int alloc_dma_desc_resources(struct stmmac_priv *priv,
return ret;
ret = alloc_dma_tx_desc_resources(priv, dma_conf);
+ if (ret) {
+ free_dma_rx_desc_resources(priv, dma_conf);
+ return ret;
+ }
- return ret;
+ return 0;
}
/**
---
base-commit: 028ef9c96e96197026887c0f092424679298aae8
change-id: 20260425-stmmac-rx-desc-cleanup-440f05845492
Best regards,
--
Abid Ali <dev.taqnialabs@xxxxxxxxx>