gpio: sta2x11: check the return value of irq_alloc_generic_chip() (d76e8bab) · Commits · 戴 / test

drivers/gpio/gpio-sta2x11.c

+10 −2

Original line number	Diff line number	Diff line
		@@ -320,13 +320,16 @@ static irqreturn_t gsta_gpio_handler(int irq, void *dev_id)
		return ret;
		}

		static void gsta_alloc_irq_chip(struct gsta_gpio *chip)
		static int gsta_alloc_irq_chip(struct gsta_gpio *chip)
		{
		struct irq_chip_generic *gc;
		struct irq_chip_type *ct;

		gc = irq_alloc_generic_chip(KBUILD_MODNAME, 1, chip->irq_base,
		chip->reg_base, handle_simple_irq);
		if (!gc)
		return -ENOMEM;

		gc->private = chip;
		ct = gc->chip_types;

		@@ -350,6 +353,8 @@ static void gsta_alloc_irq_chip(struct gsta_gpio *chip)
		}
		gc->irq_cnt = i - gc->irq_base;
		}

		return 0;
		}

		/* The platform device used here is instantiated by the MFD device */
		@@ -400,7 +405,10 @@ static int gsta_probe(struct platform_device *dev)
		return err;
		}
		chip->irq_base = err;
		gsta_alloc_irq_chip(chip);

		err = gsta_alloc_irq_chip(chip);
		if (err)
		return err;

		err = devm_request_irq(&dev->dev, pdev->irq, gsta_gpio_handler,
		IRQF_SHARED, KBUILD_MODNAME, chip);