[PATCH -next] binderfs: fix error return code in binderfs_fill_super()

From: Wei Yongjun
Date: Tue Jan 15 2019 - 21:55:21 EST


Fix to return a negative error code -ENOMEM from the new_inode() and
d_make_root() error handling cases instead of 0, as done elsewhere in
this function.

Fixes: 3ad20fe393b3 ("binder: implement binderfs")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
drivers/android/binderfs.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index 9518e2e..2bf4b2b 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -519,8 +519,10 @@ static int binderfs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_fs_info = info;

inode = new_inode(sb);
- if (!inode)
+ if (!inode) {
+ ret = -ENOMEM;
goto err_without_dentry;
+ }

inode->i_ino = FIRST_INODE;
inode->i_fop = &simple_dir_operations;
@@ -530,8 +532,10 @@ static int binderfs_fill_super(struct super_block *sb, void *data, int silent)
set_nlink(inode, 2);

sb->s_root = d_make_root(inode);
- if (!sb->s_root)
+ if (!sb->s_root) {
+ ret = -ENOMEM;
goto err_without_dentry;
+ }

ret = binderfs_binder_ctl_create(sb);
if (ret)