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serial: 8250: 8250_core: Fix irq name for 8250 serial IRQ 

Using dev_name() as IRQ name during request_irq() might be misleading in
case of serial over PCI. Therefore identify serial port IRQ using
uart_port's name field. This will help mapping IRQs to appropriate
ttySN(where N is the serial port index) instances.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vignesh R 2017-03-24 10:58:00 +05:30 committed by Greg Kroah-Hartman
parent f7048b1590
commit b2c663d155
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/8250/8250_core.c
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@ -218,7 +218,7 @@ static int serial_link_irq_chain(struct uart_8250_port *up)
spin_unlock_irq(&i->lock);
irq_flags |= up->port.irqflags;
ret = request_irq(up->port.irq, serial8250_interrupt,
irq_flags, dev_name(up->port.dev), i);
irq_flags, up->port.name, i);
if (ret < 0)
serial_do_unlink(i, up);
}