unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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gfs2: bugger off early if O_CREAT open finds a directory

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-09-18 17:38:59 -04:00
parent cac7f24298
commit 986cdb862e
1 changed files with 5 additions and 0 deletions
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5
fs/gfs2/inode.c
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@ -624,6 +624,11 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
inode = gfs2_dir_search(dir, &dentry->d_name, !S_ISREG(mode) || excl);
error = PTR_ERR(inode);
if (!IS_ERR(inode)) {
if (S_ISDIR(inode->i_mode)) {
iput(inode);
inode = ERR_PTR(-EISDIR);
goto fail_gunlock;
}
d = d_splice_alias(inode, dentry);
error = PTR_ERR(d);
if (IS_ERR(d)) {