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| author | Julia Lawall <julia@diku.dk> | 2010-08-29 03:52:45 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-09-02 08:07:33 +0400 |
| commit | a8e25c61546bdc30d936bc0f4fd3a7cb594490c5 (patch) | |
| tree | f19178f9468493cc66ca9b64ed9d0eef3f408068 /arch/powerpc/platforms/maple | |
| parent | 1f7aac6eb585f92756603341cb1d770c797c4867 (diff) | |
| download | linux-a8e25c61546bdc30d936bc0f4fd3a7cb594490c5.tar.xz | |
powerpc/maple: Add of_node_put to avoid memory leak
Add a call to of_node_put in the error handling code following a call to
of_find_node_by_path.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
local idexpression x;
expression E,E1;
statement S;
@@
*x =
(of_find_node_by_path
|of_find_node_by_name
|of_find_node_by_phandle
|of_get_parent
|of_get_next_parent
|of_get_next_child
|of_find_compatible_node
|of_match_node
)(...);
...
if (x == NULL) S
<... when != x = E
*if (...) {
... when != of_node_put(x)
when != if (...) { ... of_node_put(x); ... }
(
return <+...x...+>;
|
* return ...;
)
}
...>
of_node_put(x);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/maple')
| -rw-r--r-- | arch/powerpc/platforms/maple/setup.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index 3fff8d979b41..fe34c3d9bb74 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -358,6 +358,7 @@ static int __init maple_cpc925_edac_setup(void) model = (const unsigned char *)of_get_property(np, "model", NULL); if (!model) { printk(KERN_ERR "%s: Unabel to get model info\n", __func__); + of_node_put(np); return -ENODEV; } |