forked from Minki/linux
7f904d7e1f
Based on 1 normalized pattern(s): gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 58 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
61 lines
1.2 KiB
Plaintext
61 lines
1.2 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-only
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/// NULL check before some freeing functions is not needed.
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///
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/// Based on checkpatch warning
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/// "kfree(NULL) is safe this check is probably not required"
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/// and kfreeaddr.cocci by Julia Lawall.
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///
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// Copyright: (C) 2014 Fabian Frederick.
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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 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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kfree(E);
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kzfree(E);
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debugfs_remove(E);
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debugfs_remove_recursive(E);
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usb_free_urb(E);
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kmem_cache_destroy(E);
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mempool_destroy(E);
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dma_pool_destroy(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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* \(kfree@p\|kzfree@p\|debugfs_remove@p\|debugfs_remove_recursive@p\|
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* usb_free_urb@p\|kmem_cache_destroy@p\|mempool_destroy@p\|
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* dma_pool_destroy@p\)(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 that freeing function 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 some freeing functions is not needed."
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coccilib.report.print_report(p[0], msg)
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