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| author | Julia Lawall <julia@diku.dk> | 2011-08-20 09:02:00 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-08-22 23:29:16 +0100 |
| commit | 178b279b645a14ca8ea01e4ea818c88681a31b07 (patch) | |
| tree | 903a9072325750cb2a09af3019c9382664bea0be | |
| parent | 5006b313283c56cfda498513b7091692bcd74433 (diff) | |
| download | linux-3.10-178b279b645a14ca8ea01e4ea818c88681a31b07.tar.gz linux-3.10-178b279b645a14ca8ea01e4ea818c88681a31b07.tar.bz2 linux-3.10-178b279b645a14ca8ea01e4ea818c88681a31b07.zip | |
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/)
// <smpl>
@@
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 ...; }
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| -rw-r--r-- | sound/soc/fsl/p1022_ds.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c index 8fa4d5f8eda..fcb862eb0c7 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); |