linux-kernel - [PATCH 1/3] cifs: delete unnecessary NULL checks in cifs_chan_update

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Message-ID: <b628a706-d356-4629-a433-59dfda24bb94@moroto.mountain>
Date: Mon, 8 Jan 2024 12:07:59 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Steve French <sfrench@...ba.org>
Cc: Paulo Alcantara <pc@...guebit.com>,
	Ronnie Sahlberg <lsahlber@...hat.com>,
	Shyam Prasad N <sprasad@...rosoft.com>, Tom Talpey <tom@...pey.com>,
	linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 1/3] cifs: delete unnecessary NULL checks in
 cifs_chan_update_iface()

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@...aro.org>
---
 fs/smb/client/sess.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c
index a16e175731eb..775c6a4a2f4b 100644
--- a/fs/smb/client/sess.c
+++ b/fs/smb/client/sess.c
@@ -467,27 +467,23 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
 		kref_put(&old_iface->refcount, release_iface);
 	} 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;
 }
 
-- 
2.42.0