Removed length calculation.

diff --git a/MagickCore/accelerate.c b/MagickCore/accelerate.c
index e1b31387aba3040e0a2b1905ab341aefc829af82..ac1aba4a56675f2b58054f51ee01a4b453b0c76e 100644 (file)
--- a/MagickCore/accelerate.c
+++ b/MagickCore/accelerate.c
@@ -4065,12 +4065,10 @@ static MagickBooleanType ComputeGrayscaleImage(Image *image,
 
   if (ALIGNED(inputPixels,CLQuantum))
   {
-    length = image->columns * image->rows;
     clEnv->library->clEnqueueMapBuffer(queue, imageBuffer, CL_TRUE, CL_MAP_READ|CL_MAP_WRITE, 0, length * sizeof(CLQuantum), 0, NULL, NULL, &clStatus);
   }
   else 
   {
-    length = image->columns * image->rows;
     clStatus = clEnv->library->clEnqueueReadBuffer(queue, imageBuffer, CL_TRUE, 0, length * sizeof(CLQuantum), inputPixels, 0, NULL, NULL);
   }
   if (clStatus != CL_SUCCESS)