linux-kernel - [PATCH 1/3] Make it safe to pass a NULL pointer to ntfs

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Date:	Fri, 19 Aug 2011 23:32:08 +0200 (CEST)
From:	Jesper Juhl <jj@...osbits.net>
To:	linux-kernel@...r.kernel.org
cc:	linux-ntfs-dev@...ts.sourceforge.net,
	Anton Altaparmakov <anton@...era.com>
Subject: [PATCH 1/3] Make it safe to pass a NULL pointer to ntfs_free()

From: Jesper Juhl <jj@...osbits.net>

Signed-off-by: Jesper Juhl <jj@...osbits.net>
---
 fs/ntfs/malloc.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/fs/ntfs/malloc.h b/fs/ntfs/malloc.h
index a44b14c..d833e37 100644
--- a/fs/ntfs/malloc.h
+++ b/fs/ntfs/malloc.h
@@ -85,6 +85,8 @@ static inline void *ntfs_malloc_nofs_nofail(unsigned long size)
 
 static inline void ntfs_free(void *addr)
 {
+	if (!addr)
+		return;
 	if (!is_vmalloc_addr(addr)) {
 		kfree(addr);
 		/* free_page((unsigned long)addr); */
-- 
1.7.6


-- 
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