From: Miaoqian Lin linmq006@gmail.com
stable inclusion from stable-v5.10.121 commit c1c4405222b6fc98c16e8c2aa679c14e41d81465 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5L6CQ
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit b23789a59fa6f00e98a319291819f91fbba0deb8 ]
of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: d10715be03bd ("video: ARM CLCD: Add DT support") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Acked-by: Xie XiuQi xiexiuqi@huawei.com --- drivers/video/fbdev/amba-clcd.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c index 33595cc4778e..79efefd224f4 100644 --- a/drivers/video/fbdev/amba-clcd.c +++ b/drivers/video/fbdev/amba-clcd.c @@ -771,12 +771,15 @@ static int clcdfb_of_vram_setup(struct clcd_fb *fb) return -ENODEV;
fb->fb.screen_base = of_iomap(memory, 0); - if (!fb->fb.screen_base) + if (!fb->fb.screen_base) { + of_node_put(memory); return -ENOMEM; + }
fb->fb.fix.smem_start = of_translate_address(memory, of_get_address(memory, 0, &size, NULL)); fb->fb.fix.smem_len = size; + of_node_put(memory);
return 0; }