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authorLiang He <windhl@126.com>2022-06-19 07:54:27 +0300
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2022-06-21 18:04:54 +0300
commiteb9e9bc4fa5fb489c92ec588b3fb35f042ba6d86 (patch)
tree92d4b7a7356fd6c5402c90e27d1785a7d8f1090c /arch/mips
parent76695592711ef1e215cc24ed3e1cd857d7fc3098 (diff)
downloadlinux-eb9e9bc4fa5fb489c92ec588b3fb35f042ba6d86.tar.xz
mips/pic32/pic32mzda: Fix refcount leak bugs
of_find_matching_node(), of_find_compatible_node() and of_find_node_by_path() will return node pointers with refcout incremented. We should call of_node_put() when they are not used anymore. Signed-off-by: Liang He <windhl@126.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/pic32/pic32mzda/init.c7
-rw-r--r--arch/mips/pic32/pic32mzda/time.c3
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/mips/pic32/pic32mzda/init.c b/arch/mips/pic32/pic32mzda/init.c
index 129915616763..d9c8c4e46aff 100644
--- a/arch/mips/pic32/pic32mzda/init.c
+++ b/arch/mips/pic32/pic32mzda/init.c
@@ -98,13 +98,18 @@ static int __init pic32_of_prepare_platform_data(struct of_dev_auxdata *lookup)
np = of_find_compatible_node(NULL, NULL, lookup->compatible);
if (np) {
lookup->name = (char *)np->name;
- if (lookup->phys_addr)
+ if (lookup->phys_addr) {
+ of_node_put(np);
continue;
+ }
if (!of_address_to_resource(np, 0, &res))
lookup->phys_addr = res.start;
+ of_node_put(np);
}
}
+ of_node_put(root);
+
return 0;
}
diff --git a/arch/mips/pic32/pic32mzda/time.c b/arch/mips/pic32/pic32mzda/time.c
index 7174e9abbb1b..777b515c52c8 100644
--- a/arch/mips/pic32/pic32mzda/time.c
+++ b/arch/mips/pic32/pic32mzda/time.c
@@ -32,6 +32,9 @@ static unsigned int pic32_xlate_core_timer_irq(void)
goto default_map;
irq = irq_of_parse_and_map(node, 0);
+
+ of_node_put(node);
+
if (!irq)
goto default_map;