While probing ns16550 clock provider may be unavailable and clk_get() returns -EPROBE_DEFER. Next ns16550_probe() attempts will be failed too because of dev_request_mem_resource() has already acquired this resource for the device and returns -EBUSY. So move resource allocation just after clock init. It will let proper probe for defered clocks on boards with deep probe disabled. Signed-off-by: Maxim Kochetkov <fido_max@xxxxxxxx> --- drivers/serial/serial_ns16550.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c index 16f3576645..bbf783f662 100644 --- a/drivers/serial/serial_ns16550.c +++ b/drivers/serial/serial_ns16550.c @@ -479,13 +479,6 @@ static int ns16550_probe(struct device *dev) priv = xzalloc(sizeof(*priv)); - ret = ns16550_init_iomem(dev, priv); - if (ret) - ret = ns16550_init_ioport(dev, priv); - - if (ret) - return ret; - if (plat) priv->plat = *plat; else @@ -511,6 +504,13 @@ static int ns16550_probe(struct device *dev) goto err; } + ret = ns16550_init_iomem(dev, priv); + if (ret) + ret = ns16550_init_ioport(dev, priv); + + if (ret) + return ret; + cdev = &priv->cdev; cdev->dev = dev; cdev->tstc = ns16550_tstc; -- 2.38.1
