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authorYann Droneaud <ydroneaud@opteya.com>2016-05-23 17:07:19 +0200
committerMichal Marek <mmarek@suse.com>2016-06-21 11:43:32 +0200
commit6dd9379e8f327e70d182b15be3ba21aa2b5d2cba (patch)
tree0e8d95f8e1748444490f8be79ba1b2dd7bde6553 /scripts/coccinelle/free/kfree.cocci
parent7a2358b3818691521c7df531415d1ea4d0398520 (diff)
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>
Diffstat (limited to 'scripts/coccinelle/free/kfree.cocci')
-rw-r--r--scripts/coccinelle/free/kfree.cocci18
1 files changed, 15 insertions, 3 deletions
diff --git a/scripts/coccinelle/free/kfree.cocci b/scripts/coccinelle/free/kfree.cocci
index 577b78056990..ac438da4fd7b 100644
--- a/scripts/coccinelle/free/kfree.cocci
+++ b/scripts/coccinelle/free/kfree.cocci
@@ -20,7 +20,11 @@ expression E;
position p1;
@@
-kfree@p1(E)
+(
+* kfree@p1(E)
+|
+* kzfree@p1(E)
+)
@print expression@
constant char [] c;
@@ -60,7 +64,11 @@ position ok;
@@
while (1) { ...
- kfree@ok(E)
+(
+* kfree@ok(E)
+|
+* kzfree@ok(E)
+)
... when != break;
when != goto l;
when forall
@@ -74,7 +82,11 @@ statement S;
position free.p1!=loop.ok,p2!={print.p,sz.p};
@@
-kfree@p1(E,...)
+(
+* kfree@p1(E,...)
+|
+* kzfree@p1(E,...)
+)
...
(
iter(...,subE,...) S // no use