File 0052-btrfs-progs-Fix-malloc-size-for-superblock.patch of Package btrfsprogs

From cb699bd5724a63471ad21e4d79022d06ea3637a1 Mon Sep 17 00:00:00 2001
From: Qu Wenruo <quwenruo@cn.fujitsu.com>
Date: Thu, 3 Jul 2014 17:36:38 +0800
Subject: [PATCH 74/88] btrfs-progs: Fix malloc size for superblock.

recover_prepare() in chunk-recover.c alloc memory which only contains
sizeof(struct btrfs_super_block). This will cause glibc malloc error
after superblock csum is calculated.

Use BTRFS_SUPER_INFO_SIZE to fix the bug.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
---
 chunk-recover.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chunk-recover.c b/chunk-recover.c
index b638ada6c4a3..b342fa75d9b6 100644
--- a/chunk-recover.c
+++ b/chunk-recover.c
@@ -1340,7 +1340,7 @@ static int recover_prepare(struct recover_control *rc, char *path)
 		return -1;
 	}
 
-	sb = malloc(sizeof(struct btrfs_super_block));
+	sb = malloc(BTRFS_SUPER_INFO_SIZE);
 	if (!sb) {
 		fprintf(stderr, "allocating memory for sb failed.\n");
 		ret = -ENOMEM;
-- 
1.9.0