5.15-stable review patch. If anyone has any objections, please let me know.
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From: Tiezhu Yang yangtiezhu@loongson.cn
[ Upstream commit 6896c2449a1858acb643014894d01b3a1223d4e5 ]
stmmac_hw_setup() may return 0 on success and an appropriate negative integer as defined in errno.h file on failure, just check it and then return early if failed in stmmac_resume().
Signed-off-by: Tiezhu Yang yangtiezhu@loongson.cn Reviewed-by: Maxime Chevallier maxime.chevallier@bootlin.com Reviewed-by: Huacai Chen chenhuacai@loongson.cn Link: https://patch.msgid.link/20250811073506.27513-2-yangtiezhu@loongson.cn Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 21cc8cd9e023a..973c60e013344 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -7487,7 +7487,14 @@ int stmmac_resume(struct device *dev) stmmac_free_tx_skbufs(priv); stmmac_clear_descriptors(priv);
- stmmac_hw_setup(ndev, false); + ret = stmmac_hw_setup(ndev, false); + if (ret < 0) { + netdev_err(priv->dev, "%s: Hw setup failed\n", __func__); + mutex_unlock(&priv->lock); + rtnl_unlock(); + return ret; + } + stmmac_init_coalesce(priv); stmmac_set_rx_mode(ndev);