mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-20 18:54:09 +08:00
e8fa600e06
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
66 lines
1.1 KiB
Plaintext
66 lines
1.1 KiB
Plaintext
/// PTR_ERR should access the value just tested by IS_ERR
|
|
//# There can be false positives in the patch case, where it is the call
|
|
//# IS_ERR that is wrong.
|
|
///
|
|
// Confidence: High
|
|
// Copyright: (C) 2012 Julia Lawall, INRIA. GPLv2.
|
|
// Copyright: (C) 2012 Gilles Muller, INRIA. GPLv2.
|
|
// URL: http://coccinelle.lip6.fr/
|
|
// Comments:
|
|
// Options: -no_includes -include_headers
|
|
|
|
virtual patch
|
|
virtual context
|
|
virtual org
|
|
virtual report
|
|
|
|
@depends on patch@
|
|
expression e,e1;
|
|
@@
|
|
|
|
(
|
|
if (IS_ERR(e)) { ... PTR_ERR(e) ... }
|
|
|
|
|
if (IS_ERR(e=e1)) { ... PTR_ERR(e) ... }
|
|
|
|
|
if (IS_ERR(e))
|
|
{ ...
|
|
PTR_ERR(
|
|
- e1
|
|
+ e
|
|
)
|
|
... }
|
|
)
|
|
|
|
@r depends on !patch@
|
|
expression e,e1;
|
|
position p1,p2;
|
|
@@
|
|
|
|
(
|
|
if (IS_ERR(e)) { ... PTR_ERR(e) ... }
|
|
|
|
|
if (IS_ERR(e=e1)) { ... PTR_ERR(e) ... }
|
|
|
|
|
*if (IS_ERR@p1(e))
|
|
{ ...
|
|
* PTR_ERR@p2(e1)
|
|
... }
|
|
)
|
|
|
|
@script:python depends on org@
|
|
p1 << r.p1;
|
|
p2 << r.p2;
|
|
@@
|
|
|
|
cocci.print_main("inconsistent IS_ERR and PTR_ERR",p1)
|
|
cocci.print_secs("PTR_ERR",p2)
|
|
|
|
@script:python depends on report@
|
|
p1 << r.p1;
|
|
p2 << r.p2;
|
|
@@
|
|
|
|
msg = "inconsistent IS_ERR and PTR_ERR, PTR_ERR on line %s" % (p2[0].line)
|
|
coccilib.report.print_report(p1[0],msg)
|