Patch "cifs: delete unnecessary NULL checks in cifs_chan_update_iface()" has been added to the 6.6-stable tree

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This is a note to let you know that I've just added the patch titled

    cifs: delete unnecessary NULL checks in cifs_chan_update_iface()

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     cifs-delete-unnecessary-null-checks-in-cifs_chan_upd.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 006946b1e744a5d978f5c6ca0acae76cf1f36f60
Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date:   Mon Jan 8 12:07:59 2024 +0300

    cifs: delete unnecessary NULL checks in cifs_chan_update_iface()
    
    [ Upstream commit c3a11c0ec66c1e0652e3a2bb4f5cc74eea0ba486 ]
    
    We return early if "iface" is NULL so there is no need to check here.
    Delete those checks.
    
    Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
    Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
    Stable-dep-of: 16a57d768111 ("cifs: reduce warning log level for server not advertising interfaces")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c
index 0d76757528e49..8dadb21292d16 100644
--- a/fs/smb/client/sess.c
+++ b/fs/smb/client/sess.c
@@ -464,27 +464,23 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
 			 &old_iface->sockaddr);
 	} else if (!chan_index) {
 		/* special case: update interface for primary channel */
-		if (iface) {
-			cifs_dbg(FYI, "referencing primary channel iface: %pIS\n",
-				 &iface->sockaddr);
-			iface->num_channels++;
-			iface->weight_fulfilled++;
-		}
+		cifs_dbg(FYI, "referencing primary channel iface: %pIS\n",
+			 &iface->sockaddr);
+		iface->num_channels++;
+		iface->weight_fulfilled++;
 	}
 	spin_unlock(&ses->iface_lock);
 
-	if (iface) {
-		spin_lock(&ses->chan_lock);
-		chan_index = cifs_ses_get_chan_index(ses, server);
-		if (chan_index == CIFS_INVAL_CHAN_INDEX) {
-			spin_unlock(&ses->chan_lock);
-			return 0;
-		}
-
-		ses->chans[chan_index].iface = iface;
+	spin_lock(&ses->chan_lock);
+	chan_index = cifs_ses_get_chan_index(ses, server);
+	if (chan_index == CIFS_INVAL_CHAN_INDEX) {
 		spin_unlock(&ses->chan_lock);
+		return 0;
 	}
 
+	ses->chans[chan_index].iface = iface;
+	spin_unlock(&ses->chan_lock);
+
 	return rc;
 }
 




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