From: Baruch Siach baruch@tkos.co.il
[ Upstream commit 7ee1a01e47403f72b9f38839a737692f6991263e ]
When mvebu_pwm_probe() fails IRQ domain is not released. Move pwm probe before IRQ domain allocation. Add pwm cleanup code to the failure path.
Fixes: 757642f9a584 ("gpio: mvebu: Add limited PWM support") Reported-by: Andrew Lunn andrew@lunn.ch Signed-off-by: Baruch Siach baruch@tkos.co.il Signed-off-by: Bartosz Golaszewski bgolaszewski@baylibre.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpio/gpio-mvebu.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index 6c06876943412..3985d6e1c17dc 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -1196,6 +1196,13 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
devm_gpiochip_add_data(&pdev->dev, &mvchip->chip, mvchip);
+ /* Some MVEBU SoCs have simple PWM support for GPIO lines */ + if (IS_ENABLED(CONFIG_PWM)) { + err = mvebu_pwm_probe(pdev, mvchip, id); + if (err) + return err; + } + /* Some gpio controllers do not provide irq support */ if (!have_irqs) return 0; @@ -1205,7 +1212,8 @@ static int mvebu_gpio_probe(struct platform_device *pdev) if (!mvchip->domain) { dev_err(&pdev->dev, "couldn't allocate irq domain %s (DT).\n", mvchip->chip.label); - return -ENODEV; + err = -ENODEV; + goto err_pwm; }
err = irq_alloc_domain_generic_chips( @@ -1253,14 +1261,12 @@ static int mvebu_gpio_probe(struct platform_device *pdev) mvchip); }
- /* Some MVEBU SoCs have simple PWM support for GPIO lines */ - if (IS_ENABLED(CONFIG_PWM)) - return mvebu_pwm_probe(pdev, mvchip, id); - return 0;
err_domain: irq_domain_remove(mvchip->domain); +err_pwm: + pwmchip_remove(&mvchip->mvpwm->chip);
return err; }