From 3279b81d7bbffee4626c4cdab73eaedb4bc6e067 Mon Sep 17 00:00:00 2001
From: "Enrico Weigelt, metux IT consult" <info@metux.net>
Date: Tue, 13 May 2025 11:34:50 +0200
Subject: [PATCH] randr: RROutputSetClones(): simplify buffer allocation /
 copying

Instead of relying on memcpy() coping with NULL buffer when size == 0,
move the call to the branch where we actually have things to copy.

This also silences yet another analyzer warning.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
---
 randr/rroutput.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/randr/rroutput.c b/randr/rroutput.c
index 8397aac74..078d6798d 100644
--- a/randr/rroutput.c
+++ b/randr/rroutput.c
@@ -120,7 +120,6 @@ RROutputCreate(ScreenPtr pScreen,
 Bool
 RROutputSetClones(RROutputPtr output, RROutputPtr * clones, int numClones)
 {
-    RROutputPtr *newClones;
     int i;
 
     if (numClones == output->numClones) {
@@ -130,15 +129,16 @@ RROutputSetClones(RROutputPtr output, RROutputPtr * clones, int numClones)
         if (i == numClones)
             return TRUE;
     }
+
+    RROutputPtr *newClones = NULL;
     if (numClones) {
         newClones = xallocarray(numClones, sizeof(RROutputPtr));
         if (!newClones)
             return FALSE;
+        memcpy(newClones, clones, numClones * sizeof(RROutputPtr));
     }
-    else
-        newClones = NULL;
+
     free(output->clones);
-    memcpy(newClones, clones, numClones * sizeof(RROutputPtr));
     output->clones = newClones;
     output->numClones = numClones;
     RROutputChanged(output, TRUE);