diff options
| author | Nicolas Palix <npalix@diku.dk> | 2010-06-06 17:15:06 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-06-12 00:00:29 +0200 |
| commit | f853f8305bc2ab24a2f5fb24c4635c645cc7f9d1 (patch) | |
| tree | dd397d99cbe8974a9a7daac55a294a7b98c28afb /scripts | |
| parent | Add scripts/coccinelle/resource_size.cocci (diff) | |
| download | linux-f853f8305bc2ab24a2f5fb24c4635c645cc7f9d1.tar.xz linux-f853f8305bc2ab24a2f5fb24c4635c645cc7f9d1.zip | |
Add scripts/coccinelle/err_cast.cocci
Add a Coccinelle file to use the ERR_CAST function
Before the release 2.6.25, one had to use ERR_PTR(PTR_ERR(...)) to
convert the pointer type of an error. Since then, the function
ERR_CAST has been available for that purpose.
Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/coccinelle/err_cast.cocci | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/scripts/coccinelle/err_cast.cocci b/scripts/coccinelle/err_cast.cocci new file mode 100644 index 000000000000..2ce115000af6 --- /dev/null +++ b/scripts/coccinelle/err_cast.cocci @@ -0,0 +1,56 @@ +/// +/// Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...)) +/// +// Confidence: High +// Copyright: (C) 2009, 2010 Nicolas Palix, DIKU. GPLv2. +// Copyright: (C) 2009, 2010 Julia Lawall, DIKU. GPLv2. +// Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6. GPLv2. +// URL: http://coccinelle.lip6.fr/ +// Options: +// +// Keywords: ERR_PTR, PTR_ERR, ERR_CAST +// Version min: 2.6.25 +// + +virtual context +virtual patch +virtual org +virtual report + + +@ depends on context && !patch && !org && !report@ +expression x; +@@ + +* ERR_PTR(PTR_ERR(x)) + +@ depends on !context && patch && !org && !report @ +expression x; +@@ + +- ERR_PTR(PTR_ERR(x)) ++ ERR_CAST(x) + +@r depends on !context && !patch && (org || report)@ +expression x; +position p; +@@ + + ERR_PTR@p(PTR_ERR(x)) + +@script:python depends on org@ +p << r.p; +x << r.x; +@@ + +msg="WARNING ERR_CAST can be used with %s" % (x) +msg_safe=msg.replace("[","@(").replace("]",")") +coccilib.org.print_todo(p[0], msg_safe) + +@script:python depends on report@ +p << r.p; +x << r.x; +@@ + +msg="WARNING: ERR_CAST can be used with %s" % (x) +coccilib.report.print_report(p[0], msg) |