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cifs: fix status checks in cifs_tree_connect

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The ordering of status checks at the beginning of
cifs_tree_connect is wrong. As a result, a tcon
which is good may stay marked as needing reconnect
infinitely.

Fixes: 2f0e4f0342 ("cifs: check only tcon status on tcon related functions")
Cc: stable@vger.kernel.org # 6.3
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Shyam Prasad N 2023-06-09 17:46:54 +00:00 • committed by Steve French
parent a5998a9ec3
commit 91f4480c41
2 changed files with 10 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

9
fs/smb/client/connect.c
View file

@ -4086,16 +4086,17 @@ int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const stru
/* only send once per connect */
spin_lock(&tcon->tc_lock);
if (tcon->status == TID_GOOD) {
spin_unlock(&tcon->tc_lock);
return 0;
}
if (tcon->status != TID_NEW &&
tcon->status != TID_NEED_TCON) {
spin_unlock(&tcon->tc_lock);
return -EHOSTDOWN;
}
if (tcon->status == TID_GOOD) {
spin_unlock(&tcon->tc_lock);
return 0;
}
tcon->status = TID_IN_TCON;
spin_unlock(&tcon->tc_lock);

9
fs/smb/client/dfs.c
View file

@ -575,16 +575,17 @@ int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const stru
/* only send once per connect */
spin_lock(&tcon->tc_lock);
if (tcon->status == TID_GOOD) {
spin_unlock(&tcon->tc_lock);
return 0;
}
if (tcon->status != TID_NEW &&
tcon->status != TID_NEED_TCON) {
spin_unlock(&tcon->tc_lock);
return -EHOSTDOWN;
}
if (tcon->status == TID_GOOD) {
spin_unlock(&tcon->tc_lock);
return 0;
}
tcon->status = TID_IN_TCON;
spin_unlock(&tcon->tc_lock);