Collapse configuration descriptor size retrieval and size testing into a single if...

[pub/USBasp.git] / Demos / Host / ClassDriver / MouseHost / MouseHost.c

diff --git a/Demos/Host/ClassDriver/MouseHost/MouseHost.c b/Demos/Host/ClassDriver/MouseHost/MouseHost.c
index c2850cf..6913ec3 100644 (file)
--- a/Demos/Host/ClassDriver/MouseHost/MouseHost.c
+++ b/Demos/Host/ClassDriver/MouseHost/MouseHost.c
@@ -79,22 +79,15 @@ int main(void)
                                uint16_t ConfigDescriptorSize;\r
                                uint8_t  ConfigDescriptorData[512];\r
 \r
-                               if (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)\r
+                               if ((USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful) ||\r
+                                   (ConfigDescriptorSize > sizeof(ConfigDescriptorData)))\r
                                {\r
-                                       printf("Error Retrieving Device Descriptor.\r\n");\r
+                                       printf("Error Retrieving Configuration Descriptor.\r\n");\r
                                        LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
                                        USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
                                        break;\r
                                }\r
                                \r
-                               if (ConfigDescriptorSize > 512)\r
-                               {\r
-                                       printf("Device Descriptor Too Large To Process.\r\n");\r
-                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
-                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
-                                       break;\r
-                               }\r
-                                 \r
                                USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData);\r
 \r
                                if (HID_Host_ConfigurePipes(&Mouse_HID_Interface,\r