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-rw-r--r--fs/namei.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 935b08d..907a3f2 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -791,8 +791,6 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
break;
/* Check mountpoints.. */
__follow_mount(&next);
- if (nd->mnt != next.mnt)
- mntput(nd->mnt);
err = -ENOENT;
inode = next.dentry->d_inode;
@@ -803,6 +801,8 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
goto out_dput;
if (inode->i_op->follow_link) {
+ if (nd->mnt != next.mnt)
+ mntput(nd->mnt);
err = do_follow_link(&next, nd);
if (err)
goto return_err;
@@ -815,6 +815,8 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
break;
} else {
dput(nd->dentry);
+ if (nd->mnt != next.mnt)
+ mntput(nd->mnt);
nd->mnt = next.mnt;
nd->dentry = next.dentry;
}
@@ -851,17 +853,19 @@ last_component:
if (err)
break;
__follow_mount(&next);
- if (nd->mnt != next.mnt)
- mntput(nd->mnt);
inode = next.dentry->d_inode;
if ((lookup_flags & LOOKUP_FOLLOW)
&& inode && inode->i_op && inode->i_op->follow_link) {
+ if (next.mnt != nd->mnt)
+ mntput(nd->mnt);
err = do_follow_link(&next, nd);
if (err)
goto return_err;
inode = nd->dentry->d_inode;
} else {
dput(nd->dentry);
+ if (nd->mnt != next.mnt)
+ mntput(nd->mnt);
nd->mnt = next.mnt;
nd->dentry = next.dentry;
}
@@ -901,6 +905,8 @@ return_base:
return 0;
out_dput:
dput(next.dentry);
+ if (nd->mnt != next.mnt)
+ mntput(nd->mnt);
break;
}
path_release(nd);
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