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serial: 8250: 8250_core: Use dev_name() during request_irq()

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Passing "serial" as name during request_irq() results in all serial port
irqs have same name. This does not help much to easily identify which
irq belongs to which serial port instance. Therefore pass dev_name()
during request_irq() so that better identifiable name is listed for
serial ports in cat /proc/interrupts output.

Output of cat /proc/interrupts
Before this patch:
 26:        689          0     GICv2 309 Edge      serial
After this patch:
 26:        696          0     GICv2 309 Edge      2530c00.serial

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vignesh R 2017-03-08 17:49:43 +05:30 committed by Greg Kroah-Hartman
parent 22a33651a5
commit f48180a70e
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, "serial", i);
irq_flags, dev_name(up->port.dev), i);
if (ret < 0)
serial_do_unlink(i, up);
}