From 0528a348b04b327a4611e29589beb4c9ae81304a Mon Sep 17 00:00:00 2001 From: Felix Gu Date: Sat, 31 Jan 2026 01:49:09 +0800 Subject: [PATCH] cache: ax45mp: Fix device node reference leak in ax45mp_cache_init() In ax45mp_cache_init(), of_find_matching_node() returns a device node with an incremented reference count that must be released with of_node_put(). The current code fails to call of_node_put() which causes a reference leak. Use the __free(device_node) attribute to ensure automatic cleanup when the variable goes out of scope. Fixes: d34599bcd2e4 ("cache: Add L2 cache management for Andes AX45MP RISC-V core") Signed-off-by: Felix Gu Signed-off-by: Conor Dooley --- drivers/cache/ax45mp_cache.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/cache/ax45mp_cache.c b/drivers/cache/ax45mp_cache.c index 1d7dd3d2c101..934c5087ec2b 100644 --- a/drivers/cache/ax45mp_cache.c +++ b/drivers/cache/ax45mp_cache.c @@ -178,11 +178,11 @@ static const struct of_device_id ax45mp_cache_ids[] = { static int __init ax45mp_cache_init(void) { - struct device_node *np; struct resource res; int ret; - np = of_find_matching_node(NULL, ax45mp_cache_ids); + struct device_node *np __free(device_node) = + of_find_matching_node(NULL, ax45mp_cache_ids); if (!of_device_is_available(np)) return -ENODEV;