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authorFelix Gu <ustc.gu@gmail.com>2026-01-30 20:13:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-03-25 13:13:23 +0300
commit8194692f4ed0600a65be7d3d12b077c84ac60852 (patch)
treef58f5ccfa0cf91121c8d7ee8802e2bb80f83cf48 /drivers/cache
parent17c84fb7cf3971cc621646185d785670e9530ca1 (diff)
downloadlinux-8194692f4ed0600a65be7d3d12b077c84ac60852.tar.xz
cache: starfive: fix device node leak in starlink_cache_init()
[ Upstream commit 3c85234b979af71cb9db5eb976ea08a468415767 ] of_find_matching_node() returns a device_node with refcount incremented. Use __free(device_node) attribute to automatically call of_node_put() when the variable goes out of scope, preventing the refcount leak. Fixes: cabff60ca77d ("cache: Add StarFive StarLink cache management") Signed-off-by: Felix Gu <ustc.gu@gmail.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/cache')
-rw-r--r--drivers/cache/starfive_starlink_cache.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cache/starfive_starlink_cache.c b/drivers/cache/starfive_starlink_cache.c
index 24c7d078ca22..3a25d2d7c70c 100644
--- a/drivers/cache/starfive_starlink_cache.c
+++ b/drivers/cache/starfive_starlink_cache.c
@@ -102,11 +102,11 @@ static const struct of_device_id starlink_cache_ids[] = {
static int __init starlink_cache_init(void)
{
- struct device_node *np;
u32 block_size;
int ret;
- np = of_find_matching_node(NULL, starlink_cache_ids);
+ struct device_node *np __free(device_node) =
+ of_find_matching_node(NULL, starlink_cache_ids);
if (!of_device_is_available(np))
return -ENODEV;