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: 2f0e4f034220 ("cifs: check only tcon status on tcon related functions")
Signed-off-by: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
---
fs/smb/client/connect.c | 9 +++++----
fs/smb/client/dfs.c | 9 +++++----
2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index 8e9a672320ab..1250d156619b 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -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);
diff --git a/fs/smb/client/dfs.c b/fs/smb/client/dfs.c
index 2f93bf8c3325..2390b2fedd6a 100644
--- a/fs/smb/client/dfs.c
+++ b/fs/smb/client/dfs.c
@@ -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);
--
2.34.1
