From: Greg Kroah-Hartman Date: Fri, 30 Jan 2009 01:17:48 +0000 (-0800) Subject: Staging: aten2011: fix up sparse warnings X-Git-Tag: firefly_0821_release~14777^2~461 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=907aff4ab004e5568b763c113e08b12b53e3e390;p=firefly-linux-kernel-4.4.55.git Staging: aten2011: fix up sparse warnings This resolves all of the sparse warnings. Cc: Russell Lang Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/uc2322/TODO b/drivers/staging/uc2322/TODO index 8d96ad42a43b..c189a64c4185 100644 --- a/drivers/staging/uc2322/TODO +++ b/drivers/staging/uc2322/TODO @@ -1,6 +1,5 @@ TODO: - checkpatch.pl cleanups - - sparse cleanups - remove dead and useless code (auditing the tty ioctls to verify that they really are correct and needed.) diff --git a/drivers/staging/uc2322/aten2011.c b/drivers/staging/uc2322/aten2011.c index b7c31b08e241..1ea885e9ea6e 100644 --- a/drivers/staging/uc2322/aten2011.c +++ b/drivers/staging/uc2322/aten2011.c @@ -246,7 +246,9 @@ static int debug = 0; #define ATEN_CTRL_TIMEOUT 500 #define VENDOR_READ_LENGTH (0x01) -int RS485mode = 0; //set to 1 for RS485 mode and 0 for RS232 mode +/* set to 1 for RS485 mode and 0 for RS232 mode */ +/* FIXME make this somehow dynamic and not build time specific */ +static int RS485mode = 0; static struct usb_serial *ATEN2011_get_usb_serial(struct usb_serial_port *port, const char *function); @@ -1519,7 +1521,6 @@ static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port, int i; int bytes_sent = 0; int transfer_size; - int from_user = 0; int minor; struct ATENINTL_port *ATEN2011_port; @@ -1581,15 +1582,7 @@ static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port, } transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE); - if (from_user) { - if (copy_from_user - (urb->transfer_buffer, current_position, transfer_size)) { - bytes_sent = -EFAULT; - goto exit; - } - } else { - memcpy(urb->transfer_buffer, current_position, transfer_size); - } + memcpy(urb->transfer_buffer, current_position, transfer_size); //usb_serial_debug_data (__FILE__, __FUNCTION__, transfer_size, urb->transfer_buffer); /* fill urb with data and submit */ @@ -1906,7 +1899,7 @@ static void ATEN2011_set_termios(struct tty_struct *tty, static int get_lsr_info(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, - unsigned int *value) + unsigned int __user *value) { int count; unsigned int result = 0; @@ -1924,7 +1917,7 @@ static int get_lsr_info(struct tty_struct *tty, static int get_number_bytes_avail(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, - unsigned int *value) + unsigned int __user *value) { unsigned int result = 0; @@ -1941,7 +1934,7 @@ static int get_number_bytes_avail(struct tty_struct *tty, } static int set_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int cmd, - unsigned int *value) + unsigned int __user *value) { unsigned int mcr; unsigned int arg; @@ -2006,7 +1999,7 @@ static int set_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int cmd, } static int get_modem_info(struct ATENINTL_port *ATEN2011_port, - unsigned int *value) + unsigned int __user *value) { unsigned int result = 0; __u16 msr; @@ -2030,7 +2023,7 @@ static int get_modem_info(struct ATENINTL_port *ATEN2011_port, } static int get_serial_info(struct ATENINTL_port *ATEN2011_port, - struct serial_struct *retinfo) + struct serial_struct __user *retinfo) { struct serial_struct tmp; @@ -2068,8 +2061,7 @@ static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, struct async_icount cprev; struct serial_icounter_struct icount; int ATENret = 0; - //int retval; - //struct tty_ldisc *ld; + unsigned int __user *user_arg = (unsigned int __user *)arg; //printk("%s - port %d, cmd = 0x%x\n", __FUNCTION__, port->number, cmd); if (ATEN2011_port_paranoia_check(port, __FUNCTION__)) { @@ -2089,19 +2081,17 @@ static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, case TIOCINQ: dbg("%s (%d) TIOCINQ", __FUNCTION__, port->number); - return get_number_bytes_avail(tty, ATEN2011_port, - (unsigned int *)arg); + return get_number_bytes_avail(tty, ATEN2011_port, user_arg); break; case TIOCOUTQ: dbg("%s (%d) TIOCOUTQ", __FUNCTION__, port->number); - return put_user(ATEN2011_chars_in_buffer(tty), - (int __user *)arg); + return put_user(ATEN2011_chars_in_buffer(tty), user_arg); break; case TIOCSERGETLSR: dbg("%s (%d) TIOCSERGETLSR", __FUNCTION__, port->number); - return get_lsr_info(tty, ATEN2011_port, (unsigned int *)arg); + return get_lsr_info(tty, ATEN2011_port, user_arg); return 0; case TIOCMBIS: @@ -2111,18 +2101,18 @@ static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, port->number); // printk("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__, port->number); ATENret = - set_modem_info(ATEN2011_port, cmd, (unsigned int *)arg); + set_modem_info(ATEN2011_port, cmd, user_arg); // printk(" %s: ret:%d\n",__FUNCTION__,ATENret); return ATENret; case TIOCMGET: dbg("%s (%d) TIOCMGET", __FUNCTION__, port->number); - return get_modem_info(ATEN2011_port, (unsigned int *)arg); + return get_modem_info(ATEN2011_port, user_arg); case TIOCGSERIAL: dbg("%s (%d) TIOCGSERIAL", __FUNCTION__, port->number); return get_serial_info(ATEN2011_port, - (struct serial_struct *)arg); + (struct serial_struct __user *)arg); case TIOCSSERIAL: dbg("%s (%d) TIOCSSERIAL", __FUNCTION__, port->number); @@ -2170,7 +2160,7 @@ static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __FUNCTION__, port->number, icount.rx, icount.tx); - if (copy_to_user((void *)arg, &icount, sizeof(icount))) + if (copy_to_user((void __user *)arg, &icount, sizeof(icount))) return -EFAULT; return 0; @@ -2829,7 +2819,7 @@ static int ATEN2011_startup(struct usb_serial *serial) /* setting configuration feature to one */ usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), - (__u8) 0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 5 * HZ); + (__u8) 0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5 * HZ); return 0; }