forked from Minki/linux
f853f8305b
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>
57 lines
1.1 KiB
Plaintext
57 lines
1.1 KiB
Plaintext
///
|
|
/// 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)
|