From 2125a44149cdf6be61fdabce898d26e9ba37dcd0 Mon Sep 17 00:00:00 2001 From: Nishka Dasgupta Date: Tue, 16 Jul 2019 11:29:44 +0530 Subject: [PATCH] staging: mt7621-pci: Add of_node_put() before return 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 Link: https://lore.kernel.org/r/20190716055944.3237-1-nishkadg.linux@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/staging/mt7621-pci/pci-mt7621.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/staging/mt7621-pci/pci-mt7621.c b/drivers/staging/mt7621-pci/pci-mt7621.c index 89fa813142ab..2e37fd136ab8 100644 --- a/drivers/staging/mt7621-pci/pci-mt7621.c +++ b/drivers/staging/mt7621-pci/pci-mt7621.c @@ -400,6 +400,7 @@ static int mt7621_pcie_parse_dt(struct mt7621_pcie *pcie) err = of_pci_get_devfn(child); if (err < 0) { + of_node_put(child); dev_err(dev, "failed to parse devfn: %d\n", err); return err; } @@ -407,8 +408,10 @@ static int mt7621_pcie_parse_dt(struct mt7621_pcie *pcie) slot = PCI_SLOT(err); err = mt7621_pcie_parse_port(pcie, child, slot); - if (err) + if (err) { + of_node_put(child); return err; + } } return 0; -- 2.30.2