From 952ff4207bcbf9cd0a19c9b5fb438a3cac2cbd4c Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Thu, 16 Nov 2017 11:37:58 +0100
Subject: [PATCH] lib/upnp/Callback: make "evp" parameter const

---
 src/lib/upnp/Callback.hxx  | 2 +-
 src/lib/upnp/Discovery.cxx | 2 +-
 src/lib/upnp/Discovery.hxx | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lib/upnp/Callback.hxx b/src/lib/upnp/Callback.hxx
index a57cfbdcd..2f559ab3f 100644
--- a/src/lib/upnp/Callback.hxx
+++ b/src/lib/upnp/Callback.hxx
@@ -40,7 +40,7 @@ public:
 		return *(UpnpCallback *)cookie;
 	}
 
-	virtual int Invoke(Upnp_EventType et, void *evp) = 0;
+	virtual int Invoke(Upnp_EventType et, const void *evp) = 0;
 };
 
 #endif
diff --git a/src/lib/upnp/Discovery.cxx b/src/lib/upnp/Discovery.cxx
index 955d59ef6..1dec2ed98 100644
--- a/src/lib/upnp/Discovery.cxx
+++ b/src/lib/upnp/Discovery.cxx
@@ -182,7 +182,7 @@ UPnPDeviceDirectory::OnByeBye(const Upnp_Discovery *disco)
 // Example: ContentDirectories appearing and disappearing from the network
 // We queue a task for our worker thread(s)
 int
-UPnPDeviceDirectory::Invoke(Upnp_EventType et, void *evp)
+UPnPDeviceDirectory::Invoke(Upnp_EventType et, const void *evp)
 {
 	switch (et) {
 	case UPNP_DISCOVERY_SEARCH_RESULT:
diff --git a/src/lib/upnp/Discovery.hxx b/src/lib/upnp/Discovery.hxx
index ec92b2b33..7f7ac8fa6 100644
--- a/src/lib/upnp/Discovery.hxx
+++ b/src/lib/upnp/Discovery.hxx
@@ -157,7 +157,7 @@ private:
 	int OnByeBye(const Upnp_Discovery *disco);
 
 	/* virtual methods from class UpnpCallback */
-	virtual int Invoke(Upnp_EventType et, void *evp) override;
+	virtual int Invoke(Upnp_EventType et, const void *evp) override;
 };