initialize err variable. (#21)

Author: diptorupd

.gitignore

@@ -3,7 +3,6 @@ __pycache__/
 *.py[cod]
 *$py.class
 
-
 # C extensions and binary files
 *.o
 *.so
@@ -15,6 +14,9 @@ build
 build_cmake
 install
 
+# Code project files
+.vscode
+
 # Eclipse project files
 .project
 .pydevproject

backends/source/dppl_opencl_interface.c

@@ -285,7 +285,7 @@ static int support_int64_atomics(cl_device_id *device)
     size_t size;
     char *value;
 
-    clGetDeviceInfo(*device, CL_DEVICE_EXTENSIONS, 0, NULL, &size);
+    err = clGetDeviceInfo(*device, CL_DEVICE_EXTENSIONS, 0, NULL, &size);
     if (err != CL_SUCCESS ) {
         printf("Unable to obtain device info for param\n");
         return DP_GLUE_FAILURE;
@@ -307,7 +307,7 @@ static int support_float64_atomics(cl_device_id *device)
     size_t size;
     char *value;
 
-    clGetDeviceInfo(*device, CL_DEVICE_EXTENSIONS, 0, NULL, &size);
+    err = clGetDeviceInfo(*device, CL_DEVICE_EXTENSIONS, 0, NULL, &size);
     if (err != CL_SUCCESS ) {
         printf("Unable to obtain device info for param\n");
         return DP_GLUE_FAILURE;