From a1cdaa64aab217a282fc3577f7c560ffaa75dcd0 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 28 Jul 2020 15:55:03 +0300 Subject: [PATCH] gpio: crystalcove: Free IRQ on error path It appears that all, but request_irq(), calls in the driver are device managed. In unlikely case of devm_gpiochip_add_data() failure the IRQ left requested. Free IRQ on error path by switching to devm_request_threaded_irq() API. Byproduct of this change is a drop of ->remove() callback completely. Fixes: 945e72db36bd ("gpio: crystalcove: Use irqchip template") Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20200728125504.27786-2-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij --- drivers/gpio/gpio-crystalcove.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/gpio/gpio-crystalcove.c b/drivers/gpio/gpio-crystalcove.c index f60ff7579cd0..2ba225720086 100644 --- a/drivers/gpio/gpio-crystalcove.c +++ b/drivers/gpio/gpio-crystalcove.c @@ -364,9 +364,9 @@ static int crystalcove_gpio_probe(struct platform_device *pdev) girq->handler = handle_simple_irq; girq->threaded = true; - retval = request_threaded_irq(irq, NULL, crystalcove_gpio_irq_handler, - IRQF_ONESHOT, KBUILD_MODNAME, cg); - + retval = devm_request_threaded_irq(&pdev->dev, irq, NULL, + crystalcove_gpio_irq_handler, + IRQF_ONESHOT, KBUILD_MODNAME, cg); if (retval) { dev_warn(&pdev->dev, "request irq failed: %d\n", retval); return retval; @@ -381,24 +381,12 @@ static int crystalcove_gpio_probe(struct platform_device *pdev) return 0; } -static int crystalcove_gpio_remove(struct platform_device *pdev) -{ - struct crystalcove_gpio *cg = platform_get_drvdata(pdev); - int irq = platform_get_irq(pdev, 0); - - if (irq >= 0) - free_irq(irq, cg); - return 0; -} - static struct platform_driver crystalcove_gpio_driver = { .probe = crystalcove_gpio_probe, - .remove = crystalcove_gpio_remove, .driver = { .name = "crystal_cove_gpio", }, }; - module_platform_driver(crystalcove_gpio_driver); MODULE_AUTHOR("Yang, Bin ");