of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.
Signed-off-by: Peter Chen <peter.c...@nxp.com>
---
.../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 36 ++++++++++++++++------
1 file changed, 26 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index edd20c3..bec6963 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -135,7 +135,9 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac
*dwmac, struct device *
np_splitter = of_parse_phandle(np, "altr,emac-splitter", 0);
if (np_splitter) {
- if (of_address_to_resource(np_splitter, 0, &res_splitter)) {
+ ret = of_address_to_resource(np_splitter, 0, &res_splitter);
+ of_node_put(np_splitter);
+ if (ret) {
dev_info(dev, "Missing emac splitter address\n");
return -EINVAL;
}
@@ -159,14 +161,17 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac
*dwmac, struct device *
dev_err(dev,
"%s: ERROR: missing emac splitter
address\n",
__func__);
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_node_put;
}
dwmac->splitter_base =
devm_ioremap_resource(dev, &res_splitter);
- if (IS_ERR(dwmac->splitter_base))
- return PTR_ERR(dwmac->splitter_base);
+ if (IS_ERR(dwmac->splitter_base)) {
+ ret = PTR_ERR(dwmac->splitter_base);
+ goto err_node_put;
+ }
}
index = of_property_match_string(np_sgmii_adapter, "reg-names",
@@ -178,14 +183,17 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac
*dwmac, struct device *
dev_err(dev,
"%s: ERROR: failed mapping adapter\n",
__func__);
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_node_put;
}
dwmac->pcs.sgmii_adapter_base =
devm_ioremap_resource(dev, &res_sgmii_adapter);
- if (IS_ERR(dwmac->pcs.sgmii_adapter_base))
- return PTR_ERR(dwmac->pcs.sgmii_adapter_base);
+ if (IS_ERR(dwmac->pcs.sgmii_adapter_base)) {
+ ret = PTR_ERR(dwmac->pcs.sgmii_adapter_base);
+ goto err_node_put;
+ }
}
index = of_property_match_string(np_sgmii_adapter, "reg-names",
@@ -197,22 +205,30 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac
*dwmac, struct device *
dev_err(dev,
"%s: ERROR: failed mapping tse control
port\n",
__func__);
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_node_put;
}
dwmac->pcs.tse_pcs_base =
devm_ioremap_resource(dev, &res_tse_pcs);
- if (IS_ERR(dwmac->pcs.tse_pcs_base))
- return PTR_ERR(dwmac->pcs.tse_pcs_base);
+ if (IS_ERR(dwmac->pcs.tse_pcs_base)) {
+ ret = PTR_ERR(dwmac->pcs.tse_pcs_base);
+ goto err_node_put;
+ }
}
}
dwmac->reg_offset = reg_offset;
dwmac->reg_shift = reg_shift;
dwmac->sys_mgr_base_addr = sys_mgr_base_addr;
dwmac->dev = dev;
+ of_node_put(np_sgmii_adapter);
return 0;
+
+err_node_put:
+ of_node_put(np_sgmii_adapter);
+ return ret;
}
static int socfpga_dwmac_set_phy_mode(struct socfpga_dwmac *dwmac)
--
1.9.1
