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[1/3] cifs: delete unnecessary NULL checks in cifs_chan_update_iface()

Message ID b628a706-d356-4629-a433-59dfda24bb94@moroto.mountain
State New
Headers
Series [1/3] cifs: delete unnecessary NULL checks in cifs_chan_update_iface() |

Commit Message

Dan Carpenter Jan. 8, 2024, 9:07 a.m. UTC 
  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@linaro.org>
---
 fs/smb/client/sess.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

Comments

Steve French Jan. 9, 2024, 12:52 a.m. UTC | #1 
merged into cifs-2.6.git for-next, still reviewing the other two

On Mon, Jan 8, 2024 at 3:08 AM Dan Carpenter <dan.carpenter@linaro.org> wrote:
>
> 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@linaro.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
>
>
diff mbox series

Patch

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;
 }