diff mbox series

net: ethernet: ti: Add of_node_put() before return

Message ID 20211015073107.13046-1-wanjiabing@vivo.com (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series net: ethernet: ti: Add of_node_put() before return | expand

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Context Check Description
netdev/cover_letter success Single patches do not need cover letters
netdev/fixes_present success Fixes tag not required for -next series
netdev/patch_count success Link
netdev/tree_selection success Guessed tree name to be net-next
netdev/subject_prefix warning Target tree name not specified in the subject
netdev/cc_maintainers success CCed 9 of 9 maintainers
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success No Fixes tag
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 59 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success No static functions without inline keyword in header files

Commit Message

Jiabing Wan Oct. 15, 2021, 7:30 a.m. UTC 
Fix following coccicheck warning:
./drivers/net/ethernet/ti/am65-cpsw-nuss.c:1835:1-23: WARNING: Function
for_each_child_of_node should have of_node_put() before return

Early exits from for_each_child_of_node should decrement the
node reference counter.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
---
 drivers/net/ethernet/ti/am65-cpsw-nuss.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 6904bfaa5777..00ef27cdde84 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -1844,12 +1844,14 @@  static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
 		if (ret < 0) {
 			dev_err(dev, "%pOF error reading port_id %d\n",
 				port_np, ret);
+			of_node_put(port_np);
 			return ret;
 		}
 
 		if (!port_id || port_id > common->port_num) {
 			dev_err(dev, "%pOF has invalid port_id %u %s\n",
 				port_np, port_id, port_np->name);
+			of_node_put(port_np);
 			return -EINVAL;
 		}
 
@@ -1866,8 +1868,10 @@  static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
 				(AM65_CPSW_NU_FRAM_PORT_OFFSET * (port_id - 1));
 
 		port->slave.mac_sl = cpsw_sl_get("am65", dev, port->port_base);
-		if (IS_ERR(port->slave.mac_sl))
+		if (IS_ERR(port->slave.mac_sl)) {
+			of_node_put(port_np);
 			return PTR_ERR(port->slave.mac_sl);
+		}
 
 		port->disabled = !of_device_is_available(port_np);
 		if (port->disabled) {
@@ -1880,6 +1884,7 @@  static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
 			ret = PTR_ERR(port->slave.ifphy);
 			dev_err(dev, "%pOF error retrieving port phy: %d\n",
 				port_np, ret);
+			of_node_put(port_np);
 			return ret;
 		}
 
@@ -1889,10 +1894,12 @@  static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
 		/* get phy/link info */
 		if (of_phy_is_fixed_link(port_np)) {
 			ret = of_phy_register_fixed_link(port_np);
-			if (ret)
+			if (ret) {
+				of_node_put(port_np);
 				return dev_err_probe(dev, ret,
 						     "failed to register fixed-link phy %pOF\n",
 						     port_np);
+			}
 			port->slave.phy_node = of_node_get(port_np);
 		} else {
 			port->slave.phy_node =
@@ -1902,6 +1909,7 @@  static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
 		if (!port->slave.phy_node) {
 			dev_err(dev,
 				"slave[%d] no phy found\n", port_id);
+			of_node_put(port_np);
 			return -ENODEV;
 		}
 
@@ -1909,6 +1917,7 @@  static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
 		if (ret) {
 			dev_err(dev, "%pOF read phy-mode err %d\n",
 				port_np, ret);
+			of_node_put(port_np);
 			return ret;
 		}