From 46a5707d9c2eefa23e88f7c63999adb9190c5b46 Mon Sep 17 00:00:00 2001
From: Jeroen Hofstee <jeroen@myspectrum.nl>
Date: Mon, 9 Jun 2014 15:29:00 +0200
Subject: [PATCH] ext4: correctly zero filename

Since ALLOC_CACHE_ALIGN_BUFFER declares a char* for filename
sizeof(filename) is not the size of the buffer. Use the already
known length instead.

cc: Uma Shankar <uma.shankar@samsung.com>
cc: Manjunatha C Achar <a.manjunatha@samsung.com>
cc: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Acked-by: Marek Vasut <marex@denx.de>
---
 fs/ext4/ext4_write.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/ext4_write.c b/fs/ext4/ext4_write.c
index c42add9a7ea..648a59672c3 100644
--- a/fs/ext4/ext4_write.c
+++ b/fs/ext4/ext4_write.c
@@ -840,7 +840,7 @@ int ext4fs_write(const char *fname, unsigned char *buffer,
 	unsigned int ibmap_idx;
 	struct ext_filesystem *fs = get_fs();
 	ALLOC_CACHE_ALIGN_BUFFER(char, filename, 256);
-	memset(filename, 0x00, sizeof(filename));
+	memset(filename, 0x00, 256);
 
 	g_parent_inode = zalloc(sizeof(struct ext2_inode));
 	if (!g_parent_inode)
-- 
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