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usb: aspeed-vhub: Fix refcount leak bug in ast_vhub_init_desc()

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[ Upstream commit 220fafb4ed ]

We should call of_node_put() for the reference returned by
of_get_child_by_name() which has increased the refcount.

Fixes: 30d2617fd7 ("usb: gadget: aspeed: allow to set usb strings in device tree")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220713120528.368168-1-windhl@126.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Liang He 2022-07-13 20:05:28 +08:00 • committed by Greg Kroah-Hartman
commit e6db5780c2
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/gadget/udc/aspeed-vhub/hub.c
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@ -1033,8 +1033,10 @@ static int ast_vhub_init_desc(struct ast_vhub *vhub)
/* Initialize vhub String Descriptors. */
INIT_LIST_HEAD(&vhub->vhub_str_desc);
desc_np = of_get_child_by_name(vhub_np, "vhub-strings");
if (desc_np)
if (desc_np) {
ret = ast_vhub_of_parse_str_desc(vhub, desc_np);
of_node_put(desc_np);
}
else
ret = ast_vhub_str_alloc_add(vhub, &ast_vhub_strings);