From: Ioan Nicu Date: Mon, 30 Mar 2015 13:03:38 +0000 (+0200) Subject: i2c: i2c-mux-gpio: remove error messages for probe deferrals X-Git-Tag: firefly_0821_release~176^2~1979^2~5 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=623e4ecb869ea5c643715a08f376987887664de1;p=firefly-linux-kernel-4.4.55.git i2c: i2c-mux-gpio: remove error messages for probe deferrals Probe deferral is not an error case. It happens only when the necessary dependencies are not there yet. The driver core is already printing a message when a driver requests probe deferral, so this can be traced in the logs without these error prints. This patch removes the error messages for these deferral cases. Signed-off-by: Ionut Nicu Acked-by: Alexander Sverdlin Acked-by: Peter Korsgaard Signed-off-by: Wolfram Sang --- diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index f5798eb4076b..70db99264339 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -76,10 +76,9 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, return -ENODEV; } adapter = of_find_i2c_adapter_by_node(adapter_np); - if (!adapter) { - dev_err(&pdev->dev, "Cannot find parent bus\n"); + if (!adapter) return -EPROBE_DEFER; - } + mux->data.parent = i2c_adapter_id(adapter); put_device(&adapter->dev); @@ -177,11 +176,8 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) } parent = i2c_get_adapter(mux->data.parent); - if (!parent) { - dev_err(&pdev->dev, "Parent adapter (%d) not found\n", - mux->data.parent); + if (!parent) return -EPROBE_DEFER; - } mux->parent = parent; mux->gpio_base = gpio_base;