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Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 907a3f2b4c9..37fcf941fa3 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1506,8 +1506,6 @@ do_last:
mntput(path.mnt);
goto exit;
}
- mntput(nd->mnt);
- nd->mnt = path.mnt;
}
error = -ENOENT;
if (!path.dentry->d_inode)
@@ -1517,6 +1515,9 @@ do_last:
dput(nd->dentry);
nd->dentry = path.dentry;
+ if (nd->mnt != path.mnt)
+ mntput(nd->mnt);
+ nd->mnt = path.mnt;
error = -EISDIR;
if (path.dentry->d_inode && S_ISDIR(path.dentry->d_inode->i_mode))
goto exit;
@@ -1528,6 +1529,9 @@ ok:
exit_dput:
dput(path.dentry);
+ if (nd->mnt != path.mnt)
+ mntput(nd->mnt);
+ nd->mnt = path.mnt;
exit:
path_release(nd);
return error;
@@ -1550,6 +1554,9 @@ do_link:
error = security_inode_follow_link(path.dentry, nd);
if (error)
goto exit_dput;
+ if (nd->mnt != path.mnt)
+ mntput(nd->mnt);
+ nd->mnt = path.mnt;
error = __do_follow_link(&path, nd);
if (error)
return error;