mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 10:43:06 +00:00
76 lines
1.6 KiB
Text
76 lines
1.6 KiB
Text
|
/// This semantic patch looks for malloc etc that are not followed by a
|
||
|
|
/// NULL check. It only gives a report in the case where there is some
|
||
|
|
/// error handling code later in the function, which may be helpful
|
||
|
|
/// in determining what the error handling code for the call to malloc etc
|
||
|
|
/// should be.
|
||
|
|
///
|
||
|
|
// Confidence: High
|
||
|
|
// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
|
||
|
|
// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2.
|
||
|
|
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2.
|
||
|
|
// URL: http://coccinelle.lip6.fr/
|
||
|
|
// Comments:
|
||
|
|
// Options: --no-includes --include-headers
|
||
|
|
//
|
||
|
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual context
|
||
|
|
virtual org
|
||
|
|
virtual report
|
||
|
|
|
||
|
|
@withtest@
|
||
|
|
expression x;
|
||
|
|
position p;
|
||
|
|
identifier f,fld;
|
||
|
|
@@
|
||
|
|
|
||
|
|
x@p = f(...);
|
||
|
|
... when != x->fld
|
||
|
|
\(x == NULL \| x != NULL\)
|
||
|
|
|
||
|
|
@fixed depends on context && !org && !report@
|
||
|
|
expression x,x1;
|
||
|
|
position p1 != withtest.p;
|
||
|
|
statement S;
|
||
|
|
position any withtest.p;
|
||
|
|
identifier f;
|
||
|
|
@@
|
||
|
|
|
||
|
|
*x@p1 = \(malloc\|calloc\)(...);
|
||
|
|
...
|
||
|
|
*x1@p = f(...);
|
||
|
|
if (!x1) S
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
@rfixed depends on (org || report) && !context exists@
|
||
|
|
expression x,x1;
|
||
|
|
position p1 != withtest.p;
|
||
|
|
position p2;
|
||
|
|
statement S;
|
||
|
|
position any withtest.p;
|
||
|
|
identifier f;
|
||
|
|
@@
|
||
|
|
|
||
|
|
x@p1 = \(malloc\|calloc\)(...);
|
||
|
|
...
|
||
|
|
x1@p = f@p2(...);
|
||
|
|
if (!x1) S
|
||
|
|
|
||
|
|
@script:python depends on org@
|
||
|
|
p1 << rfixed.p1;
|
||
|
|
p2 << rfixed.p2;
|
||
|
|
@@
|
||
|
|
|
||
|
|
cocci.print_main("alloc call",p1)
|
||
|
|
cocci.print_secs("possible model",p2)
|
||
|
|
|
||
|
|
@script:python depends on report@
|
||
|
|
p1 << rfixed.p1;
|
||
|
|
p2 << rfixed.p2;
|
||
|
|
@@
|
||
|
|
|
||
|
|
msg = "alloc with no test, possible model on line %s" % (p2[0].line)
|
||
|
|
coccilib.report.print_report(p1[0],msg)
|