diff options
Diffstat (limited to 'arch/um/drivers/xterm_kern.c')
| -rw-r--r-- | arch/um/drivers/xterm_kern.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/um/drivers/xterm_kern.c b/arch/um/drivers/xterm_kern.c index 8011e51993d5..3971252cb1a6 100644 --- a/arch/um/drivers/xterm_kern.c +++ b/arch/um/drivers/xterm_kern.c @@ -21,12 +21,19 @@ struct xterm_wait { static irqreturn_t xterm_interrupt(int irq, void *data) { struct xterm_wait *xterm = data; - int fd; + int fd = -1, n_fds = 1; + ssize_t ret; - fd = os_rcv_fd(xterm->fd, &xterm->pid); - if (fd == -EAGAIN) + ret = os_rcv_fd_msg(xterm->fd, &fd, n_fds, + &xterm->pid, sizeof(xterm->pid)); + if (ret == -EAGAIN) return IRQ_NONE; + if (ret < 0) + fd = ret; + else if (ret != sizeof(xterm->pid)) + fd = -EMSGSIZE; + xterm->new_fd = fd; complete(&xterm->ready); |