coccinelle: devm_free: reduce false positives

Some files use both a non-devm allocation and a devm_allocation.  Don't
complain about a free when the same function contains a non-devm
allocation.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Julia Lawall 2018-02-01 10:48:52 +01:00 committed by Masahiro Yamada
parent 0a5f417674
commit e856f3a7d7

View File

@ -56,9 +56,62 @@ expression x;
x = devm_ioport_map(...)
)
@safe depends on context || org || report exists@
expression x;
position p;
@@
(
x = kmalloc(...)
|
x = kvasprintf(...)
|
x = kasprintf(...)
|
x = kzalloc(...)
|
x = kmalloc_array(...)
|
x = kcalloc(...)
|
x = kstrdup(...)
|
x = kmemdup(...)
|
x = get_free_pages(...)
|
x = request_irq(...)
|
x = ioremap(...)
|
x = ioremap_nocache(...)
|
x = ioport_map(...)
)
...
(
kfree@p(x)
|
kzfree@p(x)
|
__krealloc@p(x, ...)
|
krealloc@p(x, ...)
|
free_pages@p(x, ...)
|
free_page@p(x)
|
free_irq@p(x)
|
iounmap@p(x)
|
ioport_unmap@p(x)
)
@pb@
expression r.x;
position p;
position p != safe.p;
@@
(