i2c: i2c-mux-gpio: don't ignore of_get_named_gpio errors
i2c: i2c-mux-gpio: don't ignore of_get_named_gpio errors

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 <d277594847477c11ab01c52c8553d95bf90f594e@nsn.com>
Acked-by: Peter Korsgaard <6b4d40de4b806e606a54c5b4518dbd05b106c43d@barco.com>
Signed-off-by: Wolfram Sang <fd4ce474653598159cad06f3c83387a05cd53a44@the-dreams.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs