diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:18:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:19:04 +0200 |
| commit | 6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e (patch) | |
| tree | 021cc9f6b477146fcebe6f3be4752abfa2ba18a9 /scripts/coccinelle/misc/cstptr.cocci | |
| parent | 682968e0c425c60f0dde37977e5beb2b12ddc4cc (diff) | |
| parent | a385ec4f11bdcf81af094c03e2444ee9b7fad2e5 (diff) | |
Merge branch 'perf/core' into perf/uprobes
Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'scripts/coccinelle/misc/cstptr.cocci')
| -rw-r--r-- | scripts/coccinelle/misc/cstptr.cocci | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/scripts/coccinelle/misc/cstptr.cocci b/scripts/coccinelle/misc/cstptr.cocci new file mode 100644 index 000000000000..d42564484528 --- /dev/null +++ b/scripts/coccinelle/misc/cstptr.cocci @@ -0,0 +1,41 @@ +/// PTR_ERR should be applied before its argument is reassigned, typically +/// to NULL +/// +// Confidence: High +// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6. GPLv2. +// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6. GPLv2. +// URL: http://coccinelle.lip6.fr/ +// Comments: +// Options: -no_includes -include_headers + +virtual org +virtual report +virtual context + +@r exists@ +expression e,e1; +constant c; +position p1,p2; +@@ + +*e@p1 = c +... when != e = e1 + when != &e + when != true IS_ERR(e) +*PTR_ERR@p2(e) + +@script:python depends on org@ +p1 << r.p1; +p2 << r.p2; +@@ + +cocci.print_main("PTR_ERR",p2) +cocci.print_secs("assignment",p1) + +@script:python depends on report@ +p1 << r.p1; +p2 << r.p2; +@@ + +msg = "ERROR: PTR_ERR applied after initialization to constant on line %s" % (p1[0].line) +coccilib.report.print_report(p2[0],msg) |