linux-kernel - [PATCH] include/linux/slab.h: new KFREE() macro.

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Date:	Sun, 31 Dec 2006 16:17:49 -0800
From:	Amit Choudhary <amit2030@...il.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH] include/linux/slab.h: new KFREE() macro.

Description: new KFREE() macro to set the variable NULL after freeing it.

Signed-off-by: Amit Choudhary <amit2030@...il.com>

diff --git a/include/linux/slab.h b/include/linux/slab.h
index 1ef822e..28da74c 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -75,6 +75,12 @@ void *__kzalloc(size_t, gfp_t);
 void kfree(const void *);
 unsigned int ksize(const void *);
 
+#define KFREE(x)		\
+	do {			\
+		kfree(x);	\
+		x = NULL;	\
+	} while(0)
+
 /**
  * kcalloc - allocate memory for an array. The memory is set to zero.
  * @n: number of elements.
-
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