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path: root/drivers/tty/serial/8250/8250_of.c
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Diffstat (limited to 'drivers/tty/serial/8250/8250_of.c')
-rw-r--r--drivers/tty/serial/8250/8250_of.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index bfb37f0be22f..af8beefe9b5c 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -124,7 +124,7 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
dev_warn(&ofdev->dev, "unsupported reg-io-width (%d)\n",
prop);
ret = -EINVAL;
- goto err_dispose;
+ goto err_unprepare;
}
}
port->flags |= UPF_IOREMAP;
@@ -144,6 +144,10 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
port->line = ret;
port->irq = irq_of_parse_and_map(np, 0);
+ if (!port->irq) {
+ ret = -EPROBE_DEFER;
+ goto err_unprepare;
+ }
info->rst = devm_reset_control_get_optional_shared(&ofdev->dev, NULL);
if (IS_ERR(info->rst)) {