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ovl: clean up error handling in ovl_get_tmpfile() 

If security_inode_copy_up() fails, it should not set new_creds, so no need
for the cleanup (which would've Oops-ed anyway, due to old_creds being
NULL).

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Miklos Szeredi 2018-10-26 23:34:39 +02:00
parent babf4770be
commit 1f244dc521
1 changed files with 2 additions and 3 deletions
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5
fs/overlayfs/copy_up.c
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@ -477,9 +477,8 @@ static struct dentry *ovl_get_tmpfile(struct ovl_copy_up_ctx *c)
};
err = security_inode_copy_up(c->dentry, &new_creds);
temp = ERR_PTR(err);
if (err < 0)
goto out;
return ERR_PTR(err);
if (new_creds)
old_creds = override_creds(new_creds);
@ -488,7 +487,7 @@ static struct dentry *ovl_get_tmpfile(struct ovl_copy_up_ctx *c)
temp = ovl_do_tmpfile(c->workdir, c->stat.mode);
else
temp = ovl_create_temp(c->workdir, &cattr);
out:
if (new_creds) {
revert_creds(old_creds);
put_cred(new_creds);