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
///
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/// Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))
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///
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// Confidence: High
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// Copyright: (C) 2009, 2010 Nicolas Palix, DIKU. GPLv2.
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// Copyright: (C) 2009, 2010 Julia Lawall, DIKU. GPLv2.
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// Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6. GPLv2.
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// URL: http://coccinelle.lip6.fr/
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// Options:
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//
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// Keywords: ERR_PTR, PTR_ERR, ERR_CAST
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// Version min: 2.6.25
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//
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virtual context
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virtual patch
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virtual org
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virtual report
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@ depends on context && !patch && !org && !report@
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expression x;
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@@
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* ERR_PTR(PTR_ERR(x))
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@ depends on !context && patch && !org && !report @
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expression x;
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@@
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- ERR_PTR(PTR_ERR(x))
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+ ERR_CAST(x)
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@r depends on !context && !patch && (org || report)@
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expression x;
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position p;
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@@
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ERR_PTR@p(PTR_ERR(x))
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@script:python depends on org@
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p << r.p;
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x << r.x;
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@@
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msg="WARNING ERR_CAST can be used with %s" % (x)
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msg_safe=msg.replace("[","@(").replace("]",")")
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coccilib.org.print_todo(p[0], msg_safe)
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@script:python depends on report@
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p << r.p;
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x << r.x;
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@@
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msg="WARNING: ERR_CAST can be used with %s" % (x)
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coccilib.report.print_report(p[0], msg)
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