take read-lock when saving processor order

[ardour.git] / libs / ardour / iec2ppmdsp.cc

diff --git a/libs/ardour/iec2ppmdsp.cc b/libs/ardour/iec2ppmdsp.cc
index caca744c520d7d7eeaf5690d9a3c26a2359935fd..d65f51b3fa0c4085d2a6a77fbf82c5e5ff5e8f56 100644 (file)
--- a/libs/ardour/iec2ppmdsp.cc
+++ b/libs/ardour/iec2ppmdsp.cc
@@ -41,7 +41,7 @@ Iec2ppmdsp::~Iec2ppmdsp (void)
 }
 
 
-void Iec2ppmdsp::process (float *p, int n)
+void Iec2ppmdsp::process (float const *p, int n)
 {
     float z1, z2, m, t;