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usb serial: more fixes and groundwork for tty changes

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- If a termios change fails due to lack of memory we should copy the
   old settings back over as the device has not changed
 - Note various locking problems
 - kl5kusb105 had various remaining tty flag handling problems
 - Make safe_serial use tty_insert_flip_string not open coded loops
 - set termios speed properly in usb_serial

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox
2008-04-08 17:16:06 +01:00
committed by Greg Kroah-Hartman
parent 441b62c1ed
commit a5b6f60c5a
16 changed files with 95 additions and 69 deletions
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3
drivers/usb/serial/omninet.c
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@@ -295,8 +295,9 @@ static int omninet_write_room (struct usb_serial_port *port)
struct usb_serial *serial = port->serial;
struct usb_serial_port *wport = serial->port[1];
int room = 0; // Default: no room
int room = 0; /* Default: no room */
/* FIXME: no consistent locking for write_urb_busy */
if (wport->write_urb_busy)
room = wport->bulk_out_size - OMNINET_HEADERLEN;