Thread (31 messages) 31 messages, 7 authors, 2016-08-01
STALE3586d

[PATCH 06/15] ethernet: hisilicon: hns: hns_dsaf_mac: add missing of_node_put after calling of_parse_phandle

From: Peter Chen <hidden>
Date: 2016-07-27 02:45:46
Subsystem: hisilicon network subsystem driver, networking drivers, the rest · Maintainers: Jian Shen, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

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 <redacted>
---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index 3fb87e2..18d72ea 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -786,6 +786,7 @@ static int  hns_mac_get_info(struct hns_mac_cb *mac_cb)
 		np = of_parse_phandle(mac_cb->dev->of_node, "phy-handle",
 				      mac_cb->mac_id);
 		mac_cb->phy_dev = of_phy_find_device(np);
+		of_node_put(np);
 		if (mac_cb->phy_dev) {
 			/* refcount is held by of_phy_find_device()
 			 * if the phy_dev is found
@@ -804,6 +805,7 @@ static int  hns_mac_get_info(struct hns_mac_cb *mac_cb)
 		np = of_parse_phandle(to_of_node(mac_cb->fw_port),
 				      "phy-handle", 0);
 		mac_cb->phy_dev = of_phy_find_device(np);
+		of_node_put(np);
 		if (mac_cb->phy_dev) {
 			/* refcount is held by of_phy_find_device()
 			 * if the phy_dev is found
@@ -813,9 +815,10 @@ static int  hns_mac_get_info(struct hns_mac_cb *mac_cb)
 				mac_cb->mac_id, np->name);
 		}
 
-		syscon = syscon_node_to_regmap(
-				of_parse_phandle(to_of_node(mac_cb->fw_port),
-						 "serdes-syscon", 0));
+		np = of_parse_phandle(to_of_node(mac_cb->fw_port),
+					"serdes-syscon", 0);
+		syscon = syscon_node_to_regmap(np);
+		of_node_put(np);
 		if (IS_ERR_OR_NULL(syscon)) {
 			dev_err(mac_cb->dev, "serdes-syscon is needed!\n");
 			return -EINVAL;
-- 
1.9.1
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