#include "../include/can_sysdep.h"
#include "../include/main.h"
#include "../include/ioctl.h"
-#include "../include/i82527.h"
int can_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
case CANQUE_FILTER: {
struct canfilt_t canfilt;
- copy_from_user(&canfilt, (void*)arg, sizeof(struct canfilt_t));
+ int ret;
+ ret = copy_from_user(&canfilt, (void*)arg, sizeof(struct canfilt_t));
+ if(ret) return -EFAULT;
if(canuser->rx_edge0){
canque_set_filt(canuser->rx_edge0, canfilt.id, canfilt.mask, canfilt.flags);
}
int ret;
struct canmsg_t rtr_msg;
- copy_from_user(&rtr_msg, (void*)arg, sizeof(struct canmsg_t));
+ ret = copy_from_user(&rtr_msg, (void*)arg, sizeof(struct canmsg_t));
+ if(ret) return -EFAULT;
ret = can_ioctl_remote_read(canuser, &rtr_msg, rtr_msg.id, 0);
if(ret<0) return ret;
- copy_to_user((void*)arg, &rtr_msg, sizeof(struct canmsg_t));
+ ret = copy_to_user((void*)arg, &rtr_msg, sizeof(struct canmsg_t));
+ if(ret) return -EFAULT;
break;
}
case CONF_BAUDPARAMS: {
struct can_baudparams_t params;
- copy_from_user(¶ms, (void*)arg, sizeof(struct can_baudparams_t));
+ int ret;
+
+ ret = copy_from_user(¶ms, (void*)arg, sizeof(struct can_baudparams_t));
+ if(ret) return -EFAULT;
+
if(params.flags == -1) params.flags = 0;
if(params.baudrate == -1) params.baudrate = chip->baudrate;
if(params.sjw == -1) params.sjw = 0;