diff options
Diffstat (limited to 'scripts/coccinelle/api/memdup.cocci')
| -rw-r--r-- | scripts/coccinelle/api/memdup.cocci | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/scripts/coccinelle/api/memdup.cocci b/scripts/coccinelle/api/memdup.cocci index b5d722077dc1..4dceab6d54de 100644 --- a/scripts/coccinelle/api/memdup.cocci +++ b/scripts/coccinelle/api/memdup.cocci @@ -1,14 +1,17 @@ /// 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. +// Copyright: (C) 2010-2012 Nicolas Palix. GPLv2. +// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6. GPLv2. +// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6. GPLv2. // URL: http://coccinelle.lip6.fr/ // Comments: // Options: -no_includes -include_headers virtual patch +virtual context +virtual org +virtual report @r1@ expression from,to; @@ -28,7 +31,7 @@ position p; ... when != \( x = E1 \| from = E1 \) to = \(kmalloc@p\|kzalloc@p\)(x,flag); -@@ +@depends on patch@ expression from,to,size,flag; position p != {r1.p,r2.p}; statement S; @@ -38,3 +41,26 @@ statement S; + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); + +@r depends on !patch@ +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); + +@script:python depends on org@ +p << r.p; +@@ + +coccilib.org.print_todo(p[0], "WARNING opportunity for kmemdep") + +@script:python depends on report@ +p << r.p; +@@ + +coccilib.report.print_report(p[0], "WARNING opportunity for kmemdep") |