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cifs: avoid pointless cred reference count bump

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During module init root_cred will be allocated with its own reference
which is only destroyed during module exit.

Link: https://lore.kernel.org/r/20241125-work-cred-v2-20-68b9d38bb5b2@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2024-11-25 15:10:16 +01:00
parent 6077c4620d
commit 2b315eda9e
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 4 additions and 4 deletions
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8
fs/smb/client/cifsacl.c
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@ -292,7 +292,7 @@ id_to_sid(unsigned int cid, uint sidtype, struct smb_sid *ssid)
return -EINVAL;
rc = 0;
saved_cred = override_creds(get_new_cred(root_cred));
saved_cred = override_creds(root_cred);
sidkey = request_key(&cifs_idmap_key_type, desc, "");
if (IS_ERR(sidkey)) {
rc = -EINVAL;
@ -327,7 +327,7 @@ id_to_sid(unsigned int cid, uint sidtype, struct smb_sid *ssid)
out_key_put:
key_put(sidkey);
out_revert_creds:
put_cred(revert_creds(saved_cred));
revert_creds(saved_cred);
return rc;
invalidate_key:
@ -398,7 +398,7 @@ sid_to_id(struct cifs_sb_info *cifs_sb, struct smb_sid *psid,
if (!sidstr)
return -ENOMEM;
saved_cred = override_creds(get_new_cred(root_cred));
saved_cred = override_creds(root_cred);
sidkey = request_key(&cifs_idmap_key_type, sidstr, "");
if (IS_ERR(sidkey)) {
cifs_dbg(FYI, "%s: Can't map SID %s to a %cid\n",
@ -438,7 +438,7 @@ sid_to_id(struct cifs_sb_info *cifs_sb, struct smb_sid *psid,
out_key_put:
key_put(sidkey);
out_revert_creds:
put_cred(revert_creds(saved_cred));
revert_creds(saved_cred);
kfree(sidstr);
/*