lkml.org 
[lkml]   [2021]   [Feb]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 02/20] net: stmmac: Free Rx descs on Tx allocation failure
Date
Indeed in accordance with the alloc_dma_desc_resources() method logic the
Rx descriptors will be left allocated if Tx descriptors allocation fails.
Fix it by calling the free_dma_rx_desc_resources() in case if the
alloc_dma_tx_desc_resources() method returns non-zero value.

While at it refactor the method a bit. Just move the Rx descriptors
allocation method invocation out of the local variables declaration block
and discard a pointless comment from there.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 03acf14d76de..5ee840525824 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1791,13 +1791,15 @@ static int alloc_dma_tx_desc_resources(struct stmmac_priv *priv)
*/
static int alloc_dma_desc_resources(struct stmmac_priv *priv)
{
- /* RX Allocation */
- int ret = alloc_dma_rx_desc_resources(priv);
+ int ret;

+ ret = alloc_dma_rx_desc_resources(priv);
if (ret)
return ret;

ret = alloc_dma_tx_desc_resources(priv);
+ if (ret)
+ free_dma_rx_desc_resources(priv);

return ret;
}
--
2.29.2
\
 
 \ /
  Last update: 2021-02-08 15:25    [W:0.169 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site