/// The various basic memory allocation functions don't return ERR_PTR
///
// Confidence: High
// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
// URL: http://coccinelle.lip6.fr/
// Comments:
// Options: --no-includes --include-headers

virtual patch
virtual context
virtual org
virtual report

@depends on patch@
expression x,E;
@@

x = \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...)
... when != x = E
- IS_ERR(x)
+ !x

@r depends on !patch exists@
expression x,E;
position p1,p2;
@@

*x = \(kmalloc@p1\|kzalloc@p1\|kcalloc@p1\|kmem_cache_alloc@p1\|kmem_cache_zalloc@p1\|kmem_cache_alloc_node@p1\|kmalloc_node@p1\|kzalloc_node@p1\)(...)
... when != x = E
* IS_ERR@p2(x)

@script:python depends on org@
p1 << r.p1;
p2 << r.p2;
@@

cocci.print_main("alloc call",p1)
cocci.print_secs("IS_ERR that should be NULL tests",p2)

@script:python depends on report@
p1 << r.p1;
p2 << r.p2;
@@

msg = "ERROR: allocation function on line %s returns NULL not ERR_PTR on failure" % (p1[0].line)
coccilib.report.print_report(p2[0], msg)
p-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=a79a5276aa2f844bd368c1d3d5a625e1fbefd989'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?h=nds-private-remove&amp;id=a79a5276aa2f844bd368c1d3d5a625e1fbefd989'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi?h=nds-private-remove&amp;id=a79a5276aa2f844bd368c1d3d5a625e1fbefd989'>uapi</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/asm-generic?h=nds-private-remove&amp;id=a79a5276aa2f844bd368c1d3d5a625e1fbefd989'>asm-generic</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/asm-generic?h=nds-private-remove&amp;id=a79a5276aa2f844bd368c1d3d5a625e1fbefd989&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>