This is a note to let you know that I've just added the patch titled
pinctrl: at91: Use dev_err_probe() instead of custom messaging
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pinctrl-at91-use-dev_err_probe-instead-of-custom-mes.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8a5850a0f14a08483a2bb84b83c929123e232248
Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Wed Feb 15 15:42:41 2023 +0200
pinctrl: at91: Use dev_err_probe() instead of custom messaging
[ Upstream commit 472bbb2cfd6384fe4c4b956af2170c1225fe2a92 ]
The custom message has no value except printing the error code,
the same does dev_err_probe(). Let's use the latter for the sake
of unification.
Note that some APIs already have messaging in them and some simply
do not require the current noise.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Tested-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230215134242.37618-5-andriy.shevchenko@xxxxxxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Stable-dep-of: 35216718c9ac ("pinctrl: at91: fix a couple NULL vs IS_ERR() checks")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index f0b139a1cc3ed..e3664aafccef9 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1294,10 +1294,11 @@ static const struct of_device_id at91_pinctrl_of_match[] = {
static int at91_pinctrl_probe_dt(struct platform_device *pdev,
struct at91_pinctrl *info)
{
+ struct device *dev = &pdev->dev;
int ret = 0;
int i, j, ngpio_chips_enabled = 0;
uint32_t *tmp;
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np = dev->of_node;
struct device_node *child;
if (!np)
@@ -1361,9 +1362,8 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev,
continue;
ret = at91_pinctrl_parse_functions(child, info, i++);
if (ret) {
- dev_err(&pdev->dev, "failed to parse function\n");
of_node_put(child);
- return ret;
+ return dev_err_probe(dev, ret, "failed to parse function\n");
}
}
@@ -1416,11 +1416,8 @@ static int at91_pinctrl_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, info);
info->pctl = devm_pinctrl_register(&pdev->dev, &at91_pinctrl_desc,
info);
-
- if (IS_ERR(info->pctl)) {
- dev_err(&pdev->dev, "could not register AT91 pinctrl driver\n");
- return PTR_ERR(info->pctl);
- }
+ if (IS_ERR(info->pctl))
+ return dev_err_probe(dev, PTR_ERR(info->pctl), "could not register AT91 pinctrl driver\n");
/* We will handle a range of GPIO pins */
for (i = 0; i < gpio_banks; i++)
@@ -1821,28 +1818,20 @@ static int at91_gpio_probe(struct platform_device *pdev)
char **names;
BUG_ON(alias_idx >= ARRAY_SIZE(gpio_chips));
- if (gpio_chips[alias_idx]) {
- ret = -EBUSY;
- goto err;
- }
+ if (gpio_chips[alias_idx])
+ return dev_err_probe(dev, -EBUSY, "%d slot is occupied.\n", alias_idx);
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- ret = irq;
- goto err;
- }
+ if (irq < 0)
+ return irq;
at91_chip = devm_kzalloc(&pdev->dev, sizeof(*at91_chip), GFP_KERNEL);
- if (!at91_chip) {
- ret = -ENOMEM;
- goto err;
- }
+ if (!at91_chip)
+ return -ENOMEM;
at91_chip->regbase = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(at91_chip->regbase)) {
- ret = PTR_ERR(at91_chip->regbase);
- goto err;
- }
+ if (IS_ERR(at91_chip->regbase))
+ return PTR_ERR(at91_chip->regbase);
at91_chip->ops = (const struct at91_pinctrl_mux_ops *)
of_match_device(at91_gpio_of_match, &pdev->dev)->data;
@@ -1850,11 +1839,8 @@ static int at91_gpio_probe(struct platform_device *pdev)
at91_chip->pioc_idx = alias_idx;
at91_chip->clock = devm_clk_get_enabled(&pdev->dev, NULL);
- if (IS_ERR(at91_chip->clock)) {
- dev_err(&pdev->dev, "failed to get clock, ignoring.\n");
- ret = PTR_ERR(at91_chip->clock);
- goto err;
- }
+ if (IS_ERR(at91_chip->clock))
+ return dev_err_probe(dev, PTR_ERR(at91_chip->clock), "failed to get clock, ignoring.\n");
at91_chip->chip = at91_gpio_template;
at91_chip->id = alias_idx;
@@ -1867,17 +1853,15 @@ static int at91_gpio_probe(struct platform_device *pdev)
if (!of_property_read_u32(np, "#gpio-lines", &ngpio)) {
if (ngpio >= MAX_NB_GPIO_PER_BANK)
- pr_err("at91_gpio.%d, gpio-nb >= %d failback to %d\n",
- alias_idx, MAX_NB_GPIO_PER_BANK, MAX_NB_GPIO_PER_BANK);
+ dev_err(dev, "at91_gpio.%d, gpio-nb >= %d failback to %d\n",
+ alias_idx, MAX_NB_GPIO_PER_BANK, MAX_NB_GPIO_PER_BANK);
else
chip->ngpio = ngpio;
}
names = devm_kasprintf_strarray(dev, "pio", chip->ngpio);
- if (!names) {
- ret = -ENOMEM;
- goto err;
- }
+ if (!names)
+ return -ENOMEM;
for (i = 0; i < chip->ngpio; i++)
strreplace(names[i], '-', alias_idx + 'A');
@@ -1894,11 +1878,11 @@ static int at91_gpio_probe(struct platform_device *pdev)
ret = at91_gpio_of_irq_setup(pdev, at91_chip);
if (ret)
- goto gpiochip_add_err;
+ return ret;
ret = gpiochip_add_data(chip, at91_chip);
if (ret)
- goto gpiochip_add_err;
+ return ret;
gpio_chips[alias_idx] = at91_chip;
platform_set_drvdata(pdev, at91_chip);
@@ -1907,12 +1891,6 @@ static int at91_gpio_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "at address %p\n", at91_chip->regbase);
return 0;
-
-gpiochip_add_err:
-err:
- dev_err(&pdev->dev, "Failure %i for GPIO %i\n", ret, alias_idx);
-
- return ret;
}
static const struct dev_pm_ops at91_gpio_pm_ops = {
