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gpiolib: of: Correct error handling in of_get_named_gpiod_flags
of_get_named_gpiod_flags fails with -EPROBE_DEFER in cases where the gpio chip is available and the GPIO translation fails. This causes drivers to be re-probed erroneusly, and hides the real problem(i.e. the GPIO number being out of range). Cc: Stable <stable@vger.kernel.org> Signed-off-by: Hans Holmberg <hans.holmberg@intel.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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