2019-06-04 16:11:38 +08:00
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// SPDX-License-Identifier: GPL-2.0-only
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2012-02-02 22:53:08 +08:00
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/// PTR_ERR should be applied before its argument is reassigned, typically
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/// to NULL
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///
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// Confidence: High
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2019-06-04 16:11:38 +08:00
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// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
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// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
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2012-02-02 22:53:08 +08:00
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// URL: http://coccinelle.lip6.fr/
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// Comments:
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2013-06-20 19:10:56 +08:00
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// Options: --no-includes --include-headers
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2012-02-02 22:53:08 +08:00
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virtual org
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virtual report
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virtual context
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@r exists@
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expression e,e1;
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constant c;
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position p1,p2;
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@@
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*e@p1 = c
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... when != e = e1
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when != &e
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when != true IS_ERR(e)
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*PTR_ERR@p2(e)
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@script:python depends on org@
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p1 << r.p1;
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p2 << r.p2;
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@@
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cocci.print_main("PTR_ERR",p2)
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cocci.print_secs("assignment",p1)
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@script:python depends on report@
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p1 << r.p1;
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p2 << r.p2;
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@@
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msg = "ERROR: PTR_ERR applied after initialization to constant on line %s" % (p1[0].line)
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coccilib.report.print_report(p2[0],msg)
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