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-rw-r--r--scripts/coccinelle/api/kstrdup.cocci39
1 files changed, 39 insertions, 0 deletions
diff --git a/scripts/coccinelle/api/kstrdup.cocci b/scripts/coccinelle/api/kstrdup.cocci
new file mode 100644
index 00000000000..e0805ad08d3
--- /dev/null
+++ b/scripts/coccinelle/api/kstrdup.cocci
@@ -0,0 +1,39 @@
+/// Use kstrdup rather than duplicating its implementation
+///
+// 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 from,to;
+expression flag,E1,E2;
+statement S;
+@@
+
+- to = kmalloc(strlen(from) + 1,flag);
++ to = kstrdup(from, flag);
+ ... when != \(from = E1 \| to = E1 \)
+ if (to==NULL || ...) S
+ ... when != \(from = E2 \| to = E2 \)
+- strcpy(to, from);
+
+@@
+expression x,from,to;
+expression flag,E1,E2,E3;
+statement S;
+@@
+
+- x = strlen(from) + 1;
+ ... when != \( x = E1 \| from = E1 \)
+- to = \(kmalloc\|kzalloc\)(x,flag);
++ to = kstrdup(from, flag);
+ ... when != \(x = E2 \| from = E2 \| to = E2 \)
+ if (to==NULL || ...) S
+ ... when != \(x = E3 \| from = E3 \| to = E3 \)
+- memcpy(to, from, x);