From 97939ceae864aef2f50e117496f548555877b4ea Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Thu, 4 Aug 2022 15:36:26 +0200
Subject: [PATCH] backends/drm: fix blob updating

Two things about the code were wrong:
1. m_current is used in updateBlob() but was only updated afterwards
2. the assumption that the property having the same ID means it has the
same blob contents is not always true

BUG: 449285
---
 src/backends/drm/drm_property.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/backends/drm/drm_property.cpp b/src/backends/drm/drm_property.cpp
index 42d4bafc2d..f5b88317d0 100644
--- a/src/backends/drm/drm_property.cpp
+++ b/src/backends/drm/drm_property.cpp
@@ -112,10 +112,8 @@ bool DrmProperty::needsCommit() const
 
 void DrmProperty::setCurrent(uint64_t value)
 {
-    if (m_current != value) {
-        updateBlob();
-        m_current = value;
-    }
+    m_current = value;
+    updateBlob();
 }
 
 uint64_t DrmProperty::current() const