From: Qu Wenruo <quwenruo@cn.fujitsu.com>
Date: Wed, 26 Feb 2014 08:23:08 +0000 (+0800)
Subject: btrfs-progs: Init root_item to avoid gcc 4.8.2 warning
X-Git-Tag: upstream/4.16.1~2936
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d98a5ffe6f33d4039bf2f60dcd1fc121771d7cbc;p=platform%2Fupstream%2Fbtrfs-progs.git

btrfs-progs: Init root_item to avoid gcc 4.8.2 warning

When using gcc 4.8.2, -Wmaybe-uninitialized will report root_item may be
used uninitialized.
Since root_item_valid variant is used to determine the root_item valid,
it's a false alert and to avoid the warning, just init it on allocation.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/send-utils.c b/send-utils.c
index 8d4f46e..71b6ec1 100644
--- a/send-utils.c
+++ b/send-utils.c
@@ -538,7 +538,7 @@ int subvol_uuid_search_init(int mnt_fd, struct subvol_uuid_search *s)
 	struct btrfs_ioctl_search_key *sk = &args.key;
 	struct btrfs_ioctl_search_header *sh;
 	struct btrfs_root_item *root_item_ptr;
-	struct btrfs_root_item root_item;
+	struct btrfs_root_item root_item = {};
 	struct subvol_info *si = NULL;
 	int root_item_valid = 0;
 	unsigned long off = 0;