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linux/scripts/coccinelle/free/iounmap.cocci

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 Based on 1 normalized pattern(s): gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 58 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-04 16:11:38 +08:00
// SPDX-License-Identifier: GPL-2.0-only
coccinelle: semantic patch for missing iounmap Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-28 04:41:27 +08:00
/// Find missing iounmaps.
///
//# This only signals a missing iounmap when there is an iounmap later
//# in the same function.
//# False positives can be due to loops.
//
// Confidence: Moderate
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 Based on 1 normalized pattern(s): gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 58 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-04 16:11:38 +08:00
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
coccinelle: semantic patch for missing iounmap Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-28 04:41:27 +08:00
// URL: http://coccinelle.lip6.fr/
// Comments:
// Options:
virtual context
virtual org
virtual report
@iom@
expression e;
statement S,S1;
int ret;
position p1,p2,p3;
@@
remove ioremap_nocache and devm_ioremap_nocache ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-06 16:43:50 +08:00
e = \(ioremap@p1\)(...)
coccinelle: semantic patch for missing iounmap Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-28 04:41:27 +08:00
... when != iounmap(e)
if (<+...e...+>) S
... when any
when != iounmap(e)
when != if (...) { ... iounmap(e); ... }
(
if (ret == 0) S1
|
if (...)
{ ...
return 0; }
|
if (...)
{ ...
return <+...e...+>; }
|
*if@p2 (...)
{ ... when != iounmap(e)
when forall
return@p3 ...; }
)
... when any
iounmap(e);
@script:python depends on org@
p1 << iom.p1;
p2 << iom.p2;
p3 << iom.p3;
@@
cocci.print_main("ioremap",p1)
cocci.print_secs("if",p2)
cocci.print_secs("needed iounmap",p3)
@script:python depends on report@
p1 << iom.p1;
p2 << iom.p2;
p3 << iom.p3;
@@
msg = "ERROR: missing iounmap; ioremap on line %s and execution via conditional on line %s" % (p1[0].line,p2[0].line)
coccilib.report.print_report(p3[0],msg)