On Mon, Jan 24, 2011 at 02:12:28AM +0100, Javier Martinez Canillas wrote: > + case IOCTL_BCM_CNTRLMSG_MASK: > + { This should be indented two tabs. One for the function and one for the switch statement. > + unsigned long RxCntrlMsgBitMask = 0; > + > + /* Copy Ioctl Buffer structure */ > + Status = copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER)); > + if (Status) { > + BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, > + "copy of Ioctl buffer is failed from user space"); > + Status = -EFAULT; > + break; > + } > > - /* Copy Ioctl Buffer structure */ > - Status = copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER)); > - if(Status) > - { > - BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,"copy of Ioctl buffer is failed from user space"); > - break; > - } > + if (IoBuffer.InputLength > sizeof(unsigned long)) { Personally I would say: if (IoBuffer.InputLength != sizeof(unsigned long)) { There is no other size that makes sense here. It's more helpful to return an error directly. regards, dan carpenter _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel