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tty: ipwireless, cleanup TIOCGSERIAL 

In ipwireless_get_serial_info, struct serial_struct is memset to 0 and
then some members set to 0 explicitly.

Remove the latter as it is obviously superfluous.

And remove the retinfo check against NULL. copy_to_user will take care
of that.

Part of hub6 cleanup series.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jiri Kosina <jikos@kernel.org>
Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2016-05-09 09:11:53 +02:00 committed by Greg Kroah-Hartman
parent 33688abb28
commit fec4daecad
1 changed files with 1 additions and 10 deletions
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11
drivers/tty/ipwireless/tty.c
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@ -252,20 +252,11 @@ static int ipwireless_get_serial_info(struct ipw_tty *tty,
{
struct serial_struct tmp;
if (!retinfo)
return (-EFAULT);
memset(&tmp, 0, sizeof(tmp));
tmp.type = PORT_UNKNOWN;
tmp.line = tty->index;
tmp.port = 0;
tmp.irq = 0;
tmp.flags = 0;
tmp.baud_base = 115200;
tmp.close_delay = 0;
tmp.closing_wait = 0;
tmp.custom_divisor = 0;
tmp.hub6 = 0;
if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
return -EFAULT;