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-rw-r--r--scripts/coccinelle/null/eno.cocci20
1 files changed, 20 insertions, 0 deletions
diff --git a/scripts/coccinelle/null/eno.cocci b/scripts/coccinelle/null/eno.cocci
new file mode 100644
index 00000000000..4c9c52b9c41
--- /dev/null
+++ b/scripts/coccinelle/null/eno.cocci
@@ -0,0 +1,20 @@
+/// The various basic memory allocation functions don't return ERR_PTR
+///
+// Confidence: High
+// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
+// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2.
+// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Comments:
+// Options: -no_includes -include_headers
+
+virtual patch
+
+@@
+expression x,E;
+@@
+
+x = \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...)
+... when != x = E
+- IS_ERR(x)
++ !x