[PATCH 2/2] i2c-mux-gpio: don't ignore of_get_named_gpio errors

[PATCH 2/2] i2c-mux-gpio: don't ignore of_get_named_gpio errors

[Ionut Nicu]

of_get_named_gpio could return -E_PROBE_DEFER or another
error code. This error should be passed further instead
of being ignored.

Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
---
 drivers/i2c/muxes/i2c-mux-gpio.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index eb99f04..6370b47 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -66,7 +66,7 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux,
 	struct device_node *adapter_np, *child;
 	struct i2c_adapter *adapter;
 	unsigned *values, *gpios;
-	int i = 0;
+	int i = 0, ret;
 
 	if (!np)
 		return -ENODEV;
@@ -116,8 +116,12 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux,
 		return -ENOMEM;
 	}
 
-	for (i = 0; i < mux->data.n_gpios; i++)
-		gpios[i] = of_get_named_gpio(np, "mux-gpios", i);
+	for (i = 0; i < mux->data.n_gpios; i++) {
+		ret = of_get_named_gpio(np, "mux-gpios", i);
+		if (ret < 0)
+			return ret;
+		gpios[i] = ret;
+	}
 
 	mux->data.gpios = gpios;
 
-- 
1.7.1

Re: [PATCH 2/2] i2c-mux-gpio: don't ignore of_get_named_gpio errors

[Peter Korsgaard]

>>>>> "IN" == Ionut Nicu <ioan.nicu.ext@nsn.com> writes:

IN> of_get_named_gpio could return -E_PROBE_DEFER or another
IN> error code. This error should be passed further instead
IN> of being ignored.

Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>

--
Sorry about disclaimer - It's out of my control.
Bye, Peter Korsgaard
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