diff mbox series

gpiolib: probe deferral error reporting

Message ID 20180720075449.26711-1-marcel@ziswiler.com
State New
Headers show
Series gpiolib: probe deferral error reporting | expand

Commit Message

Marcel Ziswiler July 20, 2018, 7:54 a.m. UTC 
From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Actually report the error code from devm_regulator_get() which may as
well just be a probe deferral.

This is e.g. what one gets upon booting a Colibri T20:

gpiochip_add_data_with_key: GPIOs 0..223 (tegra-gpio) failed to register

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

---

 drivers/gpio/gpiolib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Linus Walleij July 29, 2018, 8:49 p.m. UTC | #1 
On Fri, Jul 20, 2018 at 9:54 AM Marcel Ziswiler <marcel@ziswiler.com> wrote:

> From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
>
> Actually report the error code from devm_regulator_get() which may as
> well just be a probe deferral.
>
> This is e.g. what one gets upon booting a Colibri T20:
>
> gpiochip_add_data_with_key: GPIOs 0..223 (tegra-gpio) failed to register
>
> Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Makes perfect sense.
Patch applied.

Yours,
Linus Walleij
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox series

Patch

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 2e2a6f8db405..40c65eb1d97b 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1408,9 +1408,9 @@  int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data,
 err_free_gdev:
 	ida_simple_remove(&gpio_ida, gdev->id);
 	/* failures here can mean systems won't boot... */
-	pr_err("%s: GPIOs %d..%d (%s) failed to register\n", __func__,
+	pr_err("%s: GPIOs %d..%d (%s) failed to register, %d\n", __func__,
 	       gdev->base, gdev->base + gdev->ngpio - 1,
-	       chip->label ? : "generic");
+	       chip->label ? : "generic", status);
 	kfree(gdev);
 	return status;
 }