56 lines
1.1 KiB
Plaintext
56 lines
1.1 KiB
Plaintext
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// SPDX-License-Identifier: GPL-2.0-only
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/// Since commit b37a46683739 ("netdevice: add the case if dev is NULL"),
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/// NULL check before dev_{put, hold} functions is not needed.
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///
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/// Based on ifnullfree.cocci by Fabian Frederick.
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///
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// Copyright: (C) 2022 Ziyang Xuan.
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// Comments: -
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// Options: --no-includes --include-headers
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// Version min: 5.15
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virtual patch
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virtual org
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virtual report
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virtual context
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@r2 depends on patch@
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expression E;
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@@
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- if (E != NULL)
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(
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__dev_put(E);
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dev_put(E);
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dev_put_track(E, ...);
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__dev_hold(E);
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dev_hold(E);
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dev_hold_track(E, ...);
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)
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@r depends on context || report || org @
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expression E;
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position p;
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@@
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* if (E != NULL)
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* \(__dev_put@p\|dev_put@p\|dev_put_track@p\|__dev_hold@p\|dev_hold@p\|
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* dev_hold_track@p\)(E, ...);
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@script:python depends on org@
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p << r.p;
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@@
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cocci.print_main("NULL check before dev_{put, hold} functions is not needed", p)
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@script:python depends on report@
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p << r.p;
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@@
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msg = "WARNING: NULL check before dev_{put, hold} functions is not needed."
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coccilib.report.print_report(p[0], msg)
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