mirror of https://gitee.com/openkylin/linux.git
Char: mxser, simplify mxser_get_serial_info
Initialize temp structure directly with proper values without first zeroing it and setting later as suggested by Jan. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Jan Engelhardt <jengelh@computergmbh.de> Reviewed-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
0ecd233bb6
commit
f83bb2d40a
|
@ -1168,21 +1168,18 @@ static void mxser_flush_buffer(struct tty_struct *tty)
|
|||
static int mxser_get_serial_info(struct mxser_port *info,
|
||||
struct serial_struct __user *retinfo)
|
||||
{
|
||||
struct serial_struct tmp;
|
||||
|
||||
if (!retinfo)
|
||||
return -EFAULT;
|
||||
memset(&tmp, 0, sizeof(tmp));
|
||||
tmp.type = info->type;
|
||||
tmp.line = info->tty->index;
|
||||
tmp.port = info->ioaddr;
|
||||
tmp.irq = info->board->irq;
|
||||
tmp.flags = info->flags;
|
||||
tmp.baud_base = info->baud_base;
|
||||
tmp.close_delay = info->close_delay;
|
||||
tmp.closing_wait = info->closing_wait;
|
||||
tmp.custom_divisor = info->custom_divisor;
|
||||
tmp.hub6 = 0;
|
||||
struct serial_struct tmp = {
|
||||
.type = info->type,
|
||||
.line = info->tty->index,
|
||||
.port = info->ioaddr,
|
||||
.irq = info->board->irq,
|
||||
.flags = info->flags,
|
||||
.baud_base = info->baud_base,
|
||||
.close_delay = info->close_delay,
|
||||
.closing_wait = info->closing_wait,
|
||||
.custom_divisor = info->custom_divisor,
|
||||
.hub6 = 0
|
||||
};
|
||||
if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
|
||||
return -EFAULT;
|
||||
return 0;
|
||||
|
|
Loading…
Reference in New Issue