videoio: return -1 is incorrect for function with 'bool' result

diff --git a/modules/videoio/src/cap_v4l.cpp b/modules/videoio/src/cap_v4l.cpp
index 35a948d..1bc5c9e 100644 (file)
--- a/modules/videoio/src/cap_v4l.cpp
+++ b/modules/videoio/src/cap_v4l.cpp
@@ -1722,7 +1722,7 @@ static bool icvSetControl (CvCaptureCAM_V4L* capture,
         fprintf(stderr,
                 "VIDEOIO ERROR: V4L2: setting property #%d is not supported\n",
                 property_id);
-        return -1;
+        return false;
     }
 
     /* get the min/max values */