From 3c59958d5868f77741930402dfcb27e9dc8968d2 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Wed, 12 Nov 2014 10:28:34 +0100 Subject: tty: serial: omap_serial: line is unsigned, don't check < 0 Dan Carpenter reported: |drivers/tty/serial/8250/8250_omap.c:1025 omap8250_probe() |warn: unsigned 'up.port.line' is never less than zero. |1025 if (up.port.line < 0) { Since of_alias_get_id() and pdev->id can get negative I check for the error via ret variable. Reported-by: Dan Carpenter Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/omap-serial.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/tty/serial/omap-serial.c') diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index e0bec06a5f60..435478a245d3 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -1653,16 +1653,16 @@ static int serial_omap_probe(struct platform_device *pdev) up->port.ops = &serial_omap_pops; if (pdev->dev.of_node) - up->port.line = of_alias_get_id(pdev->dev.of_node, "serial"); + ret = of_alias_get_id(pdev->dev.of_node, "serial"); else - up->port.line = pdev->id; + ret = pdev->id; - if (up->port.line < 0) { + if (ret < 0) { dev_err(&pdev->dev, "failed to get alias/pdev id, errno %d\n", - up->port.line); - ret = -ENODEV; + ret); goto err_port_line; } + up->port.line = ret; if (up->port.line >= OMAP_MAX_HSUART_PORTS) { dev_err(&pdev->dev, "uart ID %d > MAX %d.\n", up->port.line, -- cgit v1.2.3