File: simple_open.cocci

package info (click to toggle)
linux 3.16.7-ckt9-2
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 740,624 kB
  • ctags: 2,385,278
  • sloc: ansic: 12,217,941; asm: 277,354; perl: 53,978; xml: 47,771; makefile: 30,485; sh: 8,063; python: 6,597; cpp: 5,127; yacc: 4,254; lex: 2,215; awk: 741; pascal: 231; lisp: 218; sed: 30
file content (70 lines) | stat: -rw-r--r-- 1,215 bytes parent folder | download | duplicates (18)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
/// This removes an open coded simple_open() function
/// and replaces file operations references to the function
/// with simple_open() instead.
///
// Confidence: High
// Comments:
// Options: --no-includes --include-headers

virtual patch
virtual report

@ open depends on patch @
identifier open_f != simple_open;
identifier i, f;
@@
-int open_f(struct inode *i, struct file *f)
-{
(
-if (i->i_private)
-f->private_data = i->i_private;
|
-f->private_data = i->i_private;
)
-return 0;
-}

@ has_open depends on open @
identifier fops;
identifier open.open_f;
@@
struct file_operations fops = {
...,
-.open = open_f,
+.open = simple_open,
...
};

@ openr depends on report @
identifier open_f != simple_open;
identifier i, f;
position p;
@@
int open_f@p(struct inode *i, struct file *f)
{
(
if (i->i_private)
f->private_data = i->i_private;
|
f->private_data = i->i_private;
)
return 0;
}

@ has_openr depends on openr @
identifier fops;
identifier openr.open_f;
position p;
@@
struct file_operations fops = {
...,
.open = open_f@p,
...
};

@script:python@
pf << openr.p;
ps << has_openr.p;
@@

coccilib.report.print_report(pf[0],"WARNING opportunity for simple_open, see also structure on line %s"%(ps[0].line))