1 files changed, 22 insertions, 18 deletions

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index d5eac48..7f0651b 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -190,10 +190,10 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
 		/* need to prevent multiple threads trying to
 		simultaneously reconnect the same SMB session */
 			down(&tcon->ses->sesSem);
-			if (tcon->ses->status == CifsNeedReconnect)
+			if (tcon->ses->need_reconnect)
 				rc = cifs_setup_session(0, tcon->ses,
 							nls_codepage);
-			if (!rc && (tcon->tidStatus == CifsNeedReconnect)) {
+			if (!rc && (tcon->need_reconnect)) {
 				mark_open_files_invalid(tcon);
 				rc = CIFSTCon(0, tcon->ses, tcon->treeName,
 					      tcon, nls_codepage);
@@ -295,7 +295,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
 	   check for tcp and smb session status done differently
 	   for those three - in the calling routine */
 	if (tcon) {
-		if (tcon->tidStatus == CifsExiting) {
+		if (tcon->need_reconnect) {
 			/* only tree disconnect, open, and write,
 			  (and ulogoff which does not have tcon)
 			  are allowed as we start force umount */
@@ -337,10 +337,10 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
 		/* need to prevent multiple threads trying to
 		simultaneously reconnect the same SMB session */
 			down(&tcon->ses->sesSem);
-			if (tcon->ses->status == CifsNeedReconnect)
+			if (tcon->ses->need_reconnect)
 				rc = cifs_setup_session(0, tcon->ses,
 							nls_codepage);
-			if (!rc && (tcon->tidStatus == CifsNeedReconnect)) {
+			if (!rc && (tcon->need_reconnect)) {
 				mark_open_files_invalid(tcon);
 				rc = CIFSTCon(0, tcon->ses, tcon->treeName,
 					      tcon, nls_codepage);
@@ -759,7 +759,7 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon)
 
 	/* No need to return error on this operation if tid invalidated and
 	closed on server already e.g. due to tcp session crashing */
-	if (tcon->tidStatus == CifsNeedReconnect) {
+	if (tcon->need_reconnect) {
 		up(&tcon->tconSem);
 		return 0;
 	}
@@ -806,32 +806,36 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
 		up(&ses->sesSem);
 		return -EBUSY;
 	}
+
+	if (ses->server == NULL)
+		return -EIO;
+
+	if (ses->need_reconnect)
+		goto session_already_dead; /* no need to send SMBlogoff if uid
+					      already closed due to reconnect */
 	rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB);
 	if (rc) {
 		up(&ses->sesSem);
 		return rc;
 	}
 
-	if (ses->server) {
-		pSMB->hdr.Mid = GetNextMid(ses->server);
+	pSMB->hdr.Mid = GetNextMid(ses->server);
 
-		if (ses->server->secMode &
+	if (ses->server->secMode &
 		   (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
 			pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
-	}
 
 	pSMB->hdr.Uid = ses->Suid;
 
 	pSMB->AndXCommand = 0xFF;
 	rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0);
-	if (ses->server) {
-		atomic_dec(&ses->server->socketUseCount);
-		if (atomic_read(&ses->server->socketUseCount) == 0) {
-			spin_lock(&GlobalMid_Lock);
-			ses->server->tcpStatus = CifsExiting;
-			spin_unlock(&GlobalMid_Lock);
-			rc = -ESHUTDOWN;
-		}
+session_already_dead:
+	atomic_dec(&ses->server->socketUseCount);
+	if (atomic_read(&ses->server->socketUseCount) == 0) {
+		spin_lock(&GlobalMid_Lock);
+		ses->server->tcpStatus = CifsExiting;
+		spin_unlock(&GlobalMid_Lock);
+		rc = -ESHUTDOWN;
 	}
 	up(&ses->sesSem);