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| -rw-r--r-- | scripts/coccinelle/api/memdup.cocci | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/scripts/coccinelle/api/memdup.cocci b/scripts/coccinelle/api/memdup.cocci new file mode 100644 index 00000000000..b5d722077dc --- /dev/null +++ b/scripts/coccinelle/api/memdup.cocci @@ -0,0 +1,40 @@ +/// Use kmemdup 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 + +@r1@ +expression from,to; +expression flag; +position p; +@@ + + to = \(kmalloc@p\|kzalloc@p\)(strlen(from) + 1,flag); + +@r2@ +expression x,from,to; +expression flag,E1; +position p; +@@ + + x = strlen(from) + 1; + ... when != \( x = E1 \| from = E1 \) + to = \(kmalloc@p\|kzalloc@p\)(x,flag); + +@@ +expression from,to,size,flag; +position p != {r1.p,r2.p}; +statement S; +@@ + +- to = \(kmalloc@p\|kzalloc@p\)(size,flag); ++ to = kmemdup(from,size,flag); + if (to==NULL || ...) S +- memcpy(to, from, size); |