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Subject[PATCH 4/4] sound/aoa/fabrics/layout.c: remove unneeded kfree
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From: Julia Lawall <julia@diku.dk>

The label outnodev is only used when kzalloc has not yet taken place or has
failed, so there is no need for the call for kfree under this label.

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 != kfree(x)
when != x = E3
when != E3 = x
* return ...;
}
... when != x = E2
when != I(...,x,...) S
if (...) { ... when != x = E4
kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
sound/aoa/fabrics/layout.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/aoa/fabrics/layout.c b/sound/aoa/fabrics/layout.c
index 3fd1a7e..552b97a 100644
--- a/sound/aoa/fabrics/layout.c
+++ b/sound/aoa/fabrics/layout.c
@@ -1073,10 +1073,10 @@ static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
sdev->pcmid = -1;
list_del(&ldev->list);
layouts_list_items--;
+ kfree(ldev);
outnodev:
of_node_put(sound);
layout_device = NULL;
- kfree(ldev);
return -ENODEV;
}



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