From 10e0f2875428f453e22b77ce194719710c40da07 Mon Sep 17 00:00:00 2001 From: David Lin Date: Sat, 21 Mar 2020 20:54:13 +0800 Subject: [PATCH] Update cdc_vcom.c --- components/drivers/usb/usbdevice/class/cdc_vcom.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/components/drivers/usb/usbdevice/class/cdc_vcom.c b/components/drivers/usb/usbdevice/class/cdc_vcom.c index c94a438131..c4fc3b0ad9 100644 --- a/components/drivers/usb/usbdevice/class/cdc_vcom.c +++ b/components/drivers/usb/usbdevice/class/cdc_vcom.c @@ -493,6 +493,7 @@ static rt_err_t _function_enable(ufunction_t func) data = (struct vcom*)func->user_data; data->ep_out->buffer = rt_malloc(CDC_RX_BUFSIZE); + RT_ASSERT(data->ep_out->buffer != RT_NULL); data->ep_out->request.buffer = data->ep_out->buffer; data->ep_out->request.size = EP_MAXPACKET(data->ep_out); @@ -593,6 +594,7 @@ ufunction_t rt_usbd_function_cdc_create(udevice_t device) /* allocate memory for cdc vcom data */ data = (struct vcom*)rt_malloc(sizeof(struct vcom)); + RT_ASSERT(data != RT_NULL); rt_memset(data, 0, sizeof(struct vcom)); func->user_data = (void*)data;