diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-18 15:57:31 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-18 15:57:31 -0700 |
| commit | 665ab0f3c8b8f86bb77b25285ac93870c7054d63 (patch) | |
| tree | c7d12c3559982eb3fb1847438d4b45ce034851e5 /drivers/tty/serial/8250/8250.c | |
| parent | bf03f65b7967df5807ddef7b99f8a41d4c94fc70 (diff) | |
| parent | e816b57a337ea3b755de72bec38c10c864f23015 (diff) | |
Merge 3.4-rc3 into tty-next
This allows us to pick up some changes needed for other serial patches.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index dffd623b7974..cbd94c3b5702 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -1541,13 +1541,11 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id) do { struct uart_8250_port *up; struct uart_port *port; - bool skip; up = list_entry(l, struct uart_8250_port, list); port = &up->port; - skip = pass_counter && up->port.flags & UPF_IIR_ONCE; - if (!skip && port->handle_irq(port)) { + if (port->handle_irq(port)) { handled = 1; end = NULL; } else if (end == NULL) @@ -2006,10 +2004,12 @@ static int serial8250_startup(struct uart_port *port) spin_unlock_irqrestore(&port->lock, flags); /* - * If the interrupt is not reasserted, setup a timer to - * kick the UART on a regular basis. + * If the interrupt is not reasserted, or we otherwise + * don't trust the iir, setup a timer to kick the UART + * on a regular basis. */ - if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) { + if ((!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) || + up->port.flags & UPF_BUG_THRE) { up->bugs |= UART_BUG_THRE; pr_debug("ttyS%d - using backup timer\n", serial_index(port)); |