4 files changed, 86 insertions, 2 deletions

diff --git a/scripts/coccinelle/free/devm_free.cocci b/scripts/coccinelle/free/devm_free.cocci
index 0a1e36146d76..3d9349012bb3 100644
--- a/scripts/coccinelle/free/devm_free.cocci
+++ b/scripts/coccinelle/free/devm_free.cocci
@@ -18,7 +18,7 @@
 // Copyright: (C) 2011 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
-// Options: -no_includes -include_headers
+// Options: --no-includes --include-headers
 
 virtual org
 virtual report
diff --git a/scripts/coccinelle/free/kfree.cocci b/scripts/coccinelle/free/kfree.cocci
index d9ae6d89c2f5..577b78056990 100644
--- a/scripts/coccinelle/free/kfree.cocci
+++ b/scripts/coccinelle/free/kfree.cocci
@@ -10,7 +10,7 @@
 // Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
-// Options: -no_includes -include_headers
+// Options: --no-includes --include-headers
 
 virtual org
 virtual report
diff --git a/scripts/coccinelle/free/kfreeaddr.cocci b/scripts/coccinelle/free/kfreeaddr.cocci
new file mode 100644
index 000000000000..ce8aacc314cb
--- /dev/null
+++ b/scripts/coccinelle/free/kfreeaddr.cocci
@@ -0,0 +1,32 @@
+/// Free of a structure field
+///
+// Confidence: High
+// Copyright: (C) 2013 Julia Lawall, INRIA/LIP6.  GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Comments:
+// Options: --no-includes --include-headers
+
+virtual org
+virtual report
+virtual context
+
+@r depends on context || report || org @
+expression e;
+identifier f;
+position p;
+@@
+
+* kfree@p(&e->f)
+
+@script:python depends on org@
+p << r.p;
+@@
+
+cocci.print_main("kfree",p)
+
+@script:python depends on report@
+p << r.p;
+@@
+
+msg = "ERROR: kfree of structure field"
+coccilib.report.print_report(p[0],msg)
diff --git a/scripts/coccinelle/free/pci_free_consistent.cocci b/scripts/coccinelle/free/pci_free_consistent.cocci
new file mode 100644
index 000000000000..43600ccb62a8
--- /dev/null
+++ b/scripts/coccinelle/free/pci_free_consistent.cocci
@@ -0,0 +1,52 @@
+/// Find missing pci_free_consistent for every pci_alloc_consistent.
+///
+// Confidence: Moderate
+// Copyright: (C) 2013 Petr Strnad.  GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Keywords: pci_free_consistent, pci_alloc_consistent
+// Options: --no-includes --include-headers
+
+virtual report
+virtual org
+
+@search@
+local idexpression id;
+expression x,y,z,e;
+position p1,p2;
+type T;
+@@
+
+id = pci_alloc_consistent@p1(x,y,&z)
+... when != e = id
+if (id == NULL || ...) { ... return ...; }
+... when != pci_free_consistent(x,y,id,z)
+    when != if (id) { ... pci_free_consistent(x,y,id,z) ... }
+    when != if (y) { ... pci_free_consistent(x,y,id,z) ... }
+    when != e = (T)id
+    when exists
+(
+return 0;
+|
+return 1;
+|
+return id;
+|
+return@p2 ...;
+)
+
+@script:python depends on report@
+p1 << search.p1;
+p2 << search.p2;
+@@
+
+msg = "ERROR: missing pci_free_consistent; pci_alloc_consistent on line %s and return without freeing on line %s" % (p1[0].line,p2[0].line)
+coccilib.report.print_report(p2[0],msg)
+
+@script:python depends on org@
+p1 << search.p1;
+p2 << search.p2;
+@@
+
+msg = "ERROR: missing pci_free_consistent; pci_alloc_consistent on line %s and return without freeing on line %s" % (p1[0].line,p2[0].line)
+cocci.print_main(msg,p1)
+cocci.print_secs("",p2)