diff --git a/src/cuda.c b/src/cuda.c
index 6a2407a3..b790e7f5 100644
--- a/src/cuda.c
+++ b/src/cuda.c
@@ -32,7 +32,6 @@ void check_error(cudaError_t status)
         const char *s = cudaGetErrorString(status);
         char buffer[256];
         printf("CUDA Error: %s\n", s);
-        assert(0);
         snprintf(buffer, 256, "CUDA Error: %s", s);
 #ifdef WIN32
         getchar();
@@ -44,7 +43,6 @@ void check_error(cudaError_t status)
         const char *s = cudaGetErrorString(status2);
         char buffer[256];
         printf("CUDA Error Prev: %s\n", s);
-        assert(0);
         snprintf(buffer, 256, "CUDA Error Prev: %s", s);
 #ifdef WIN32
         getchar();
@@ -56,12 +54,12 @@ void check_error(cudaError_t status)
 void check_error_extended(cudaError_t status, const char *file, int line, const char *date_time)
 {
     if (status != cudaSuccess)
-        printf("CUDA Prev Error: file: %s() : line: %d : build time: %s \n", file, line, date_time);
+        printf("CUDA status Error: file: %s() : line: %d : build time: %s \n", file, line, date_time);
 #ifdef DEBUG
     status = cudaDeviceSynchronize();
-#endif
     if (status != cudaSuccess)
-        printf("CUDA Error: file: %s() : line: %d : build time: %s \n", file, line, date_time);
+        printf("CUDA status = cudaDeviceSynchronize() Error: file: %s() : line: %d : build time: %s \n", file, line, date_time);
+#endif
     check_error(status);
 }
 
@@ -150,7 +148,6 @@ void cudnn_check_error(cudnnStatus_t status)
         const char *s = cudnnGetErrorString(status);
         char buffer[256];
         printf("cuDNN Error: %s\n", s);
-        assert(0);
         snprintf(buffer, 256, "cuDNN Error: %s", s);
 #ifdef WIN32
         getchar();
@@ -162,7 +159,6 @@ void cudnn_check_error(cudnnStatus_t status)
         const char *s = cudnnGetErrorString(status2);
         char buffer[256];
         printf("cuDNN Error Prev: %s\n", s);
-        assert(0);
         snprintf(buffer, 256, "cuDNN Error Prev: %s", s);
 #ifdef WIN32
         getchar();
@@ -173,13 +169,13 @@ void cudnn_check_error(cudnnStatus_t status)
 
 void cudnn_check_error_extended(cudnnStatus_t status, const char *file, int line, const char *date_time)
 {
-    if (status != cudaSuccess)
-        printf("\n cuDNN Prev Error in: file: %s() : line: %d : build time: %s \n", file, line, date_time);
+    if (status != CUDNN_STATUS_SUCCESS)
+        printf("\n cuDNN status Error in: file: %s() : line: %d : build time: %s \n", file, line, date_time);
 #ifdef DEBUG
     status = cudaDeviceSynchronize();
+    if (status != CUDNN_STATUS_SUCCESS)
+        printf("\n cuDNN status = cudaDeviceSynchronize() Error in: file: %s() : line: %d : build time: %s \n", file, line, date_time);
 #endif
-    if (status != cudaSuccess)
-        printf("\n cuDNN Error in: file: %s() : line: %d : build time: %s \n", file, line, date_time);
     cudnn_check_error(status);
 }
 #endif
diff --git a/src/maxpool_layer.c b/src/maxpool_layer.c
index 8c1265e3..2eaa7dec 100644
--- a/src/maxpool_layer.c
+++ b/src/maxpool_layer.c
@@ -97,16 +97,16 @@ void resize_maxpool_layer(maxpool_layer *l, int w, int h)
     l->output = realloc(l->output, output_size * sizeof(float));
     l->delta = realloc(l->delta, output_size * sizeof(float));
 
-    #ifdef GPU
-    cuda_free((float *)l->indexes_gpu);
-    cuda_free(l->output_gpu);
-    cuda_free(l->delta_gpu);
+#ifdef GPU
+    CHECK_CUDA(cudaFree((float *)l->indexes_gpu));
+    CHECK_CUDA(cudaFree(l->output_gpu));
+    CHECK_CUDA(cudaFree(l->delta_gpu));
     l->indexes_gpu = cuda_make_int_array(output_size);
     l->output_gpu  = cuda_make_array(l->output, output_size);
     l->delta_gpu   = cuda_make_array(l->delta,  output_size);
 
     cudnn_maxpool_setup(l);
-    #endif
+#endif
 }
 
 void forward_maxpool_layer(const maxpool_layer l, network_state state)