diff options
| author | Julia Lawall <julia@diku.dk> | 2010-09-04 00:12:44 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-10-13 16:19:04 +1100 |
| commit | a655237fa2f9e4afe9949abe2c511432ab9537dd (patch) | |
| tree | ae4ecac9434e48d4da63aa8d96fcaa7e3296e6f7 /drivers | |
| parent | 689fd14ae9b2af5c6862ddc11d4791ec9a938cb3 (diff) | |
powerpc/irq.c: Add of_node_put to avoid memory leak
In this case, a device_node structure is stored in another structure that
is then freed without first decrementing the reference count of the
device_node structure.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
expression x;
identifier f;
position p1,p2;
@@
x@p1->f = \(of_find_node_by_path\|of_find_node_by_name\|of_find_node_by_phandle\|of_get_parent\|of_get_next_parent\|of_get_next_child\|of_find_compatible_node\|of_match_node\|of_find_node_by_type\|of_find_node_with_property\|of_find_matching_node\|of_parse_phandle\|of_node_get\)(...);
... when != of_node_put(x)
kfree@p2(x)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
cocci.print_main("call",p1)
cocci.print_secs("free",p2)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions