[PATCH] exfat: fix pointer error checking

[Tetsuhiro Kohada]

Fix missing result check of exfat_build_inode().
And use PTR_ERR_OR_ZERO instead of PTR_ERR.

Signed-off-by: Tetsuhiro Kohada <kohada...@gmail.com>
---
 fs/exfat/namei.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/fs/exfat/namei.c b/fs/exfat/namei.c
index 2aff6605fecc..0b12033e1577 100644
--- a/fs/exfat/namei.c
+++ b/fs/exfat/namei.c
@@ -578,7 +578,8 @@ static int exfat_create(struct inode *dir, struct dentry 
*dentry, umode_t mode,
 
        i_pos = exfat_make_i_pos(&info);
        inode = exfat_build_inode(sb, &info, i_pos);
-       if (IS_ERR(inode))
+       err = PTR_ERR_OR_ZERO(inode);
+       if (err)
                goto unlock;
 
        inode_inc_iversion(inode);
@@ -745,10 +746,9 @@ static struct dentry *exfat_lookup(struct inode *dir, 
struct dentry *dentry,
 
        i_pos = exfat_make_i_pos(&info);
        inode = exfat_build_inode(sb, &info, i_pos);
-       if (IS_ERR(inode)) {
-               err = PTR_ERR(inode);
+       err = PTR_ERR_OR_ZERO(inode);
+       if (err)
                goto unlock;
-       }
 
        i_mode = inode->i_mode;
        alias = d_find_alias(inode);
@@ -890,10 +890,9 @@ static int exfat_mkdir(struct inode *dir, struct dentry 
*dentry, umode_t mode)
 
        i_pos = exfat_make_i_pos(&info);
        inode = exfat_build_inode(sb, &info, i_pos);
-       if (IS_ERR(inode)) {
-               err = PTR_ERR(inode);
+       err = PTR_ERR_OR_ZERO(inode);
+       if (err)
                goto unlock;
-       }
 
        inode_inc_iversion(inode);
        inode->i_mtime = inode->i_atime = inode->i_ctime =
-- 
2.25.1