Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

[linux-2.6-omap-h63xx.git] / drivers / usb / serial / kobil_sct.c

diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index d9c21e275130a59a76bdc89a9de7ae3bf35280c9..87dfcd89ffabf44316fefa86d18cf4ecb1f077ce 100644 (file)
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -255,11 +255,9 @@ static int kobil_open (struct usb_serial_port *port, struct file *filp)
        }
        
        // allocate memory for transfer buffer
-       transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);  
+       transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
        if (! transfer_buffer) {
                return -ENOMEM;
-       } else {
-               memset(transfer_buffer, 0, transfer_buffer_length);
        }
        
        // allocate write_urb
@@ -365,7 +363,6 @@ static void kobil_close (struct usb_serial_port *port, struct file *filp)
 
 static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs)
 {
-       int i;
        int result;
        struct usb_serial_port *port = (struct usb_serial_port *) purb->context;
        struct tty_struct *tty;
@@ -384,11 +381,10 @@ static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs)
                
                // BEGIN DEBUG
                /*
-                 dbg_data = (unsigned char *) kmalloc((3 *  purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
+                 dbg_data = kzalloc((3 *  purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
                  if (! dbg_data) {
                  return;
                  }
-                 memset(dbg_data, 0, (3 *  purb->actual_length + 10));
                  for (i = 0; i < purb->actual_length; i++) { 
                  sprintf(dbg_data +3*i, "%02X ", data[i]); 
                  }
@@ -397,14 +393,8 @@ static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs)
                */
                // END DEBUG
 
-               for (i = 0; i < purb->actual_length; ++i) {
-                       // if we insert more than TTY_FLIPBUF_SIZE characters, we drop them.
-                       if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
-                               tty_flip_buffer_push(tty);
-                       }
-                       // this doesn't actually push the data through unless tty->low_latency is set
-                       tty_insert_flip_char(tty, data[i], 0);
-               }
+               tty_buffer_request_room(tty, purb->actual_length);
+               tty_insert_flip_string(tty, data, purb->actual_length);
                tty_flip_buffer_push(tty);
        }
 
@@ -525,11 +515,10 @@ static int kobil_tiocmget(struct usb_serial_port *port, struct file *file)
        }
 
        // allocate memory for transfer buffer
-       transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);  
+       transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
        if (!transfer_buffer) {
                return -ENOMEM;
        }
-       memset(transfer_buffer, 0, transfer_buffer_length);
 
        result = usb_control_msg( port->serial->dev, 
                                  usb_rcvctrlpipe(port->serial->dev, 0 ), 
@@ -571,11 +560,10 @@ static int  kobil_tiocmset(struct usb_serial_port *port, struct file *file,
        }
 
        // allocate memory for transfer buffer
-       transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
+       transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
        if (! transfer_buffer) {
                return -ENOMEM;
        }
-       memset(transfer_buffer, 0, transfer_buffer_length);
 
        if (set & TIOCM_RTS)
                rts = 1;
@@ -662,11 +650,10 @@ static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
                                                   (struct termios __user *)arg))
                        return -EFAULT;
                
-               settings = (unsigned char *) kmalloc(50, GFP_KERNEL);  
+               settings = kzalloc(50, GFP_KERNEL);
                if (! settings) {
                        return -ENOBUFS;
                }
-               memset(settings, 0, 50);
 
                switch (priv->internal_termios.c_cflag & CBAUD) {
                case B1200: