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OpenCloudOS-Kernel/scripts/coccinelle/free/kfreeaddr.cocci

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scripts/coccinelle: check for field address argument to kfree The argument to kfree should not be the address of a structure field. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-06-09 00:21:42 +08:00
/// Free of a structure field
///
// Confidence: High
// Copyright: (C) 2013 Julia Lawall, INRIA/LIP6. GPLv2.
// URL: http://coccinelle.lip6.fr/
// Comments:
Coccinelle: Update the options used to the new option scheme spatch has changed its option scheme. E.g., --no_show_diff is now --no-show-diff This patch updates: - scripts/coccicheck - Semantic patches under scripts/coccinelle/ Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-06-20 19:10:56 +08:00
// Options: --no-includes --include-headers
scripts/coccinelle: check for field address argument to kfree The argument to kfree should not be the address of a structure field. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-06-09 00:21:42 +08:00
virtual org
virtual report
virtual context
@r depends on context || report || org @
expression e;
identifier f;
position p;
@@
coccinelle: also catch kzfree() issues Since commit 3ef0e5ba4673 ('slab: introduce kzfree()'), kfree() is no more the only function to be considered: kzfree() should be recognized too. In particular, kzfree() must not be called on memory allocated through devm_*() functions. Cc: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-05-23 23:07:19 +08:00
(
scripts/coccinelle: check for field address argument to kfree The argument to kfree should not be the address of a structure field. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-06-09 00:21:42 +08:00
* kfree@p(&e->f)
coccinelle: also catch kzfree() issues Since commit 3ef0e5ba4673 ('slab: introduce kzfree()'), kfree() is no more the only function to be considered: kzfree() should be recognized too. In particular, kzfree() must not be called on memory allocated through devm_*() functions. Cc: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-05-23 23:07:19 +08:00
|
* kzfree@p(&e->f)
)
scripts/coccinelle: check for field address argument to kfree The argument to kfree should not be the address of a structure field. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-06-09 00:21:42 +08:00
@script:python depends on org@
p << r.p;
@@
cocci.print_main("kfree",p)
@script:python depends on report@
p << r.p;
@@
coccinelle: also catch kzfree() issues Since commit 3ef0e5ba4673 ('slab: introduce kzfree()'), kfree() is no more the only function to be considered: kzfree() should be recognized too. In particular, kzfree() must not be called on memory allocated through devm_*() functions. Cc: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-05-23 23:07:19 +08:00
msg = "ERROR: invalid free of structure field"
scripts/coccinelle: check for field address argument to kfree The argument to kfree should not be the address of a structure field. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-06-09 00:21:42 +08:00
coccilib.report.print_report(p[0],msg)