[PATCH AUTOSEL 4.9 46/62] f2fs: Fix uninitialized return in f2fs_ioc_shutdown()

From: Sasha Levin
Date: Sun Sep 02 2018 - 09:22:27 EST


From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

[ Upstream commit 2a96d8ad94ce57cb0072f7a660b1039720c47716 ]

"ret" can be uninitialized on the success path when "in ==
F2FS_GOING_DOWN_FULLSYNC".

Fixes: 60b2b4ee2bc0 ("f2fs: Fix deadlock in shutdown ioctl")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
fs/f2fs/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 7d0e8d6bf009..594e6e20d6dd 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1665,7 +1665,7 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct super_block *sb = sbi->sb;
__u32 in;
- int ret;
+ int ret = 0;

if (!capable(CAP_SYS_ADMIN))
return -EPERM;
--
2.17.1