From 178b279b645a14ca8ea01e4ea818c88681a31b07 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 20 Aug 2011 09:02:00 +0200 Subject: [PATCH] sound/soc/fsl/p1022_ds.c: add missing of_node_put dma_channel_np has been accessed at this point, so decrease its reference count before leaving the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ identifier x; expression E1!=0,E2,E3,E4; statement S; iterator I; @@ ( if (...) { ... when != of_node_put(x) when != x = E3 when != E3 = x * return ...; } ... when != x = E2 when != I(...,x,...) S if (...) { ... when != x = E4 of_node_put(x); ... return ...; } ) // Signed-off-by: Julia Lawall Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- sound/soc/fsl/p1022_ds.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c index 8fa4d5f8eda1..fcb862eb0c73 100644 --- a/sound/soc/fsl/p1022_ds.c +++ b/sound/soc/fsl/p1022_ds.c @@ -297,8 +297,10 @@ static int get_dma_channel(struct device_node *ssi_np, * dai->platform name should already point to an allocated buffer. */ ret = of_address_to_resource(dma_channel_np, 0, &res); - if (ret) + if (ret) { + of_node_put(dma_channel_np); return ret; + } snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%s", (unsigned long long) res.start, dma_channel_np->name); -- GitLab