linux-kernel - [PATCH 2/2] coccinelle: ifnullfree: improve and extend ifnullfree

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Message-Id: <1445102605-22408-2-git-send-email-Julia.Lawall@lip6.fr>
Date:	Sat, 17 Oct 2015 19:23:25 +0200
From:	Julia Lawall <Julia.Lawall@...6.fr>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	kernel-janitors@...r.kernel.org,
	Gilles Muller <Gilles.Muller@...6.fr>,
	Nicolas Palix <nicolas.palix@...g.fr>,
	Michal Marek <mmarek@...e.com>, cocci@...teme.lip6.fr,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	Fabian Frederick <fabf@...net.be>
Subject: [PATCH 2/2] coccinelle: ifnullfree: improve and extend ifnullfree

Extend ifnullfree to the various destroy functions that were recently
extended to tolerate NULL arguments.

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
 scripts/coccinelle/free/ifnullfree.cocci |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/scripts/coccinelle/free/ifnullfree.cocci b/scripts/coccinelle/free/ifnullfree.cocci
index d4a072d..52bd235 100644
--- a/scripts/coccinelle/free/ifnullfree.cocci
+++ b/scripts/coccinelle/free/ifnullfree.cocci
@@ -25,6 +25,12 @@ expression E;
   debugfs_remove_recursive(E);
 |
   usb_free_urb(E);
+|
+  kmem_cache_destroy(E);
+|
+  mempool_destroy(E);
+|
+  dma_pool_destroy(E);
 )
 
 @r depends on context || report || org @
@@ -33,7 +39,9 @@ position p;
 @@
 
 * if (E != NULL)
-*	\(kfree@p\|debugfs_remove@p\|debugfs_remove_recursive@p\|usb_free_urb@p\)(E);
+*	\(kfree@p\|debugfs_remove@p\|debugfs_remove_recursive@p\|
+*         usb_free_urb@p\|kmem_cache_destroy@p\|mempool_destroy@p\|
+*         dma_pool_destroy@p\)(E);
 
 @script:python depends on org@
 p << r.p;

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