Commit 0528a348 authored by Felix Gu's avatar Felix Gu Committed by Conor Dooley
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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: d34599bc ("cache: Add L2 cache management for Andes AX45MP RISC-V core")
Signed-off-by: default avatarFelix Gu <ustc.gu@gmail.com>
Signed-off-by: default avatarConor Dooley <conor.dooley@microchip.com>
parent 3c85234b

drivers/cache/ax45mp_cache.c

+2 −2
Original line number Diff line number Diff line
@@ -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;