[PATCH net] net: sxgbe: fix null pointer dereference in probe error path
From: Chenguang Zhao <hidden>
Date: 2026-07-17 09:14:24
Subsystem:
networking drivers, samsung sxgbe drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Byungho An, Linus Torvalds
From: Chenguang Zhao <redacted>
The platform drvdata is not set until all IRQs have been mapped, so the
local net_device pointer is NULL when IRQ mapping fails. Remove the device
allocated by sxgbe_drv_probe() through priv instead.
Fixes: 1edb9ca69e8a ("net: sxgbe: add basic framework for Samsung 10Gb ethernet driver")
Signed-off-by: Chenguang Zhao <redacted>
---
drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c
index 2eccc7617507..e4701b29e1a0 100644
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c@@ -82,7 +82,6 @@ static int sxgbe_platform_probe(struct platform_device *pdev) void __iomem *addr; struct sxgbe_priv_data *priv = NULL; struct sxgbe_plat_data *plat_dat = NULL; - struct net_device *ndev = platform_get_drvdata(pdev); struct device_node *node = dev->of_node; /* Get memory resource */
@@ -158,7 +157,7 @@ static int sxgbe_platform_probe(struct platform_device *pdev) irq_dispose_mapping(priv->txq[i]->irq_no); irq_dispose_mapping(priv->irq); err_drv_remove: - sxgbe_drv_remove(ndev); + sxgbe_drv_remove(priv->dev); err_out: return -ENODEV; }
--
2.25.1