From: cristy <urban-warrior@git.imagemagick.org>
Date: Tue, 13 Sep 2011 12:04:12 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: 7.0.1-0~7012
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=61b76e6dc6ef3432b74be01f08d80991e29c91e4;p=imagemagick

---

diff --git a/MagickCore/accelerate.c b/MagickCore/accelerate.c
index 8b2194e4f..4e8a8c93a 100644
--- a/MagickCore/accelerate.c
+++ b/MagickCore/accelerate.c
@@ -501,8 +501,8 @@ static ConvolveInfo *GetConvolveInfo(const Image *image,const char *name,
   /*
     Create OpenCL context.
   */
-  status=clGetPlatformIDs(0,NULL,&number_platforms);
-  if (status == CL_SUCCESS)
+  status=clGetPlatformIDs(0,(cl_platform_id *) NULL,&number_platforms);
+  if ((status == CL_SUCCESS) && (number_platforms > 0))
     status=clGetPlatformIDs(1,platforms,NULL);
   if (status != CL_SUCCESS)
     {