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[components][rndis.c] add safety checking after allocating memory

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hust202013232 2023-05-12 13:37:42 +08:00 committed by GitHub
parent 22a7bf8711
commit 9dd0d41251
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1 changed files with 13 additions and 0 deletions
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components/drivers/usb/usbdevice/class/rndis.c
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@ -1348,6 +1348,19 @@ ufunction_t rt_usbd_function_rndis_create(udevice_t device)
intf_comm = rt_usbd_interface_new(device, _interface_handler); intf_comm = rt_usbd_interface_new(device, _interface_handler);
intf_data = rt_usbd_interface_new(device, _interface_handler); intf_data = rt_usbd_interface_new(device, _interface_handler);
if((intf_comm == RT_NULL) || (intf_data == RT_NULL))
{
LOG_E("%s,%d: no memory!", __func__, __LINE__);
if(intf_comm != RT_NULL)
rt_free(intf_comm);
if(intf_data != RT_NULL)
rt_free(intf_data);
return RT_NULL;
}
/* create a communication alternate setting and a data alternate setting */ /* create a communication alternate setting and a data alternate setting */
comm_setting = rt_usbd_altsetting_new(sizeof(struct ucdc_comm_descriptor)); comm_setting = rt_usbd_altsetting_new(sizeof(struct ucdc_comm_descriptor));
data_setting = rt_usbd_altsetting_new(sizeof(struct ucdc_data_descriptor)); data_setting = rt_usbd_altsetting_new(sizeof(struct ucdc_data_descriptor));