[PATCH] net: ethernet: mscc: ocelot_board: Add of_node_put() before return
From: Nishka Dasgupta <hidden>
Date: 2019-07-16 05:52:38
Subsystem:
networking drivers, ocelot ethernet switch driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Vladimir Oltean, Linus Torvalds
Each iteration of for_each_available_child_of_node puts the previous node, but in the case of a return from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the return in two places. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <redacted> --- drivers/net/ethernet/mscc/ocelot_board.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mscc/ocelot_board.c b/drivers/net/ethernet/mscc/ocelot_board.c
index 58bde1a9eacb..2451d4a96490 100644
--- a/drivers/net/ethernet/mscc/ocelot_board.c
+++ b/drivers/net/ethernet/mscc/ocelot_board.c@@ -291,8 +291,10 @@ static int mscc_ocelot_probe(struct platform_device *pdev) continue; err = ocelot_probe_port(ocelot, port, regs, phy); - if (err) + if (err) { + of_node_put(portnp); return err; + } phy_mode = of_get_phy_mode(portnp); if (phy_mode < 0)
@@ -318,6 +320,7 @@ static int mscc_ocelot_probe(struct platform_device *pdev) dev_err(ocelot->dev, "invalid phy mode for port%d, (Q)SGMII only\n", port); + of_node_put(portnp); return -EINVAL; }
--
2.19.1