From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Fri, 13 Dec 2013 19:39:34 +0000 (+0000)
Subject: Btrfs: fix use of uninitialized err variable
X-Git-Tag: firefly_0821_release~176^2~3883^2~246
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fc28b62d648dde3cfbec6584c0fa19ea7350e7e9;p=firefly-linux-kernel-4.4.55.git

Btrfs: fix use of uninitialized err variable

fs/btrfs/file.c: In function ‘prepare_pages.isra.18’:
fs/btrfs/file.c:1265:6: warning: ‘err’ may be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 740ae8c71701..35bf83876f3f 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1244,7 +1244,7 @@ static noinline int prepare_pages(struct inode *inode, struct page **pages,
 	int i;
 	unsigned long index = pos >> PAGE_CACHE_SHIFT;
 	gfp_t mask = btrfs_alloc_write_mask(inode->i_mapping);
-	int err;
+	int err = 0;
 	int faili;
 
 	for (i = 0; i < num_pages; i++) {