From 5d1ca138026ed133f3d11fe0785de82bdee3c648 Mon Sep 17 00:00:00 2001 From: Xiongfeng Wang Date: Wed, 16 Mar 2022 09:19:38 +0100 Subject: [PATCH] media: amphion: Add missing of_node_put() in vpu_core_parse_dt() of_parse_phandle() will increment the refcount of the returned device_node. Calling of_node_put() to avoid the refcount leak. Link: https://lore.kernel.org/linux-media/20220316081938.80819-1-wangxiongfeng2@huawei.com Signed-off-by: Xiongfeng Wang Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/amphion/vpu_core.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/media/platform/amphion/vpu_core.c b/drivers/media/platform/amphion/vpu_core.c index 016554387f3f..1da20335bc45 100644 --- a/drivers/media/platform/amphion/vpu_core.c +++ b/drivers/media/platform/amphion/vpu_core.c @@ -529,11 +529,14 @@ static int vpu_core_parse_dt(struct vpu_core *core, struct device_node *np) } if (of_address_to_resource(node, 0, &res)) { dev_err(core->dev, "boot-region of_address_to_resource error\n"); + of_node_put(node); return -EINVAL; } core->fw.phys = res.start; core->fw.length = resource_size(&res); + of_node_put(node); + node = of_parse_phandle(np, "memory-region", 1); if (!node) { dev_err(core->dev, "rpc-region of_parse_phandle error\n"); @@ -541,6 +544,7 @@ static int vpu_core_parse_dt(struct vpu_core *core, struct device_node *np) } if (of_address_to_resource(node, 0, &res)) { dev_err(core->dev, "rpc-region of_address_to_resource error\n"); + of_node_put(node); return -EINVAL; } core->rpc.phys = res.start; @@ -549,6 +553,7 @@ static int vpu_core_parse_dt(struct vpu_core *core, struct device_node *np) if (core->rpc.length < core->res->rpc_size + core->res->fwlog_size) { dev_err(core->dev, "the rpc-region <%pad, 0x%x> is not enough\n", &core->rpc.phys, core->rpc.length); + of_node_put(node); return -EINVAL; } @@ -560,6 +565,7 @@ static int vpu_core_parse_dt(struct vpu_core *core, struct device_node *np) if (ret != VPU_CORE_MEMORY_UNCACHED) { dev_err(core->dev, "rpc region<%pad, 0x%x> isn't uncached\n", &core->rpc.phys, core->rpc.length); + of_node_put(node); return -EINVAL; } @@ -571,6 +577,8 @@ static int vpu_core_parse_dt(struct vpu_core *core, struct device_node *np) core->act.length = core->rpc.length - core->res->rpc_size - core->log.length; core->rpc.length = core->res->rpc_size; + of_node_put(node); + return 0; } -- 2.20.1