50 lines
1.2 KiB
Plaintext
50 lines
1.2 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-only
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/// The various basic memory allocation functions don't return ERR_PTR
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///
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// Confidence: High
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// Copyright: (C) 2010-2012 Nicolas Palix.
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// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
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// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
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// URL: https://coccinelle.gitlabpages.inria.fr/website
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// Comments:
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// Options: --no-includes --include-headers
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virtual patch
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virtual context
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virtual org
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virtual report
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@depends on patch@
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expression x,E;
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@@
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x = \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...)
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... when != x = E
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- IS_ERR(x)
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+ !x
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@r depends on !patch exists@
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expression x,E;
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position p1,p2;
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@@
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*x = \(kmalloc@p1\|kzalloc@p1\|kcalloc@p1\|kmem_cache_alloc@p1\|kmem_cache_zalloc@p1\|kmem_cache_alloc_node@p1\|kmalloc_node@p1\|kzalloc_node@p1\)(...)
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... when != x = E
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* IS_ERR@p2(x)
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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("alloc call",p1)
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cocci.print_secs("IS_ERR that should be NULL tests",p2)
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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: allocation function on line %s returns NULL not ERR_PTR on failure" % (p1[0].line)
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coccilib.report.print_report(p2[0], msg)
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