babl: in babl-trc.c, fix babl_powf()

diff --git a/babl/babl-trc.c b/babl/babl-trc.c
index b7a97172fb01af0d74132749c258673d17106bb7..6f97d83473b8de4ad6b7be5edd5b6a3916b12737 100644 (file)
--- a/babl/babl-trc.c
+++ b/babl/babl-trc.c
@@ -366,10 +366,8 @@ static inline float obabl_powf(float x, float y)
 
 static inline float babl_powf (float x, float y)
 {
-  float ret;
-  ret = expf (y * logf (x));
-  if (ret < 0.0 || ret < 0.0f)
-    return ret;
+  if (x > 0.0f)
+    return expf (y * logf (x));
   return 0.0f;
 }