diff options
Diffstat (limited to 'drivers/gpio/gpio-mxs.c')
| -rw-r--r-- | drivers/gpio/gpio-mxs.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c index b7f383eb18d9..a4288f428819 100644 --- a/drivers/gpio/gpio-mxs.c +++ b/drivers/gpio/gpio-mxs.c @@ -154,7 +154,7 @@ static void mxs_flip_edge(struct mxs_gpio_port *port, u32 gpio) } /* MXS has one interrupt *per* gpio port */ -static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc) +static void mxs_gpio_irq_handler(struct irq_desc *desc) { u32 irq_stat; struct mxs_gpio_port *port = irq_desc_get_handler_data(desc); @@ -196,13 +196,16 @@ static int mxs_gpio_set_wake_irq(struct irq_data *d, unsigned int enable) return 0; } -static void __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base) +static int __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base) { struct irq_chip_generic *gc; struct irq_chip_type *ct; gc = irq_alloc_generic_chip("gpio-mxs", 1, irq_base, port->base, handle_level_irq); + if (!gc) + return -ENOMEM; + gc->private = port; ct = gc->chip_types; @@ -216,6 +219,8 @@ static void __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base) irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_NESTED_LOCK, IRQ_NOREQUEST, 0); + + return 0; } static int mxs_gpio_to_irq(struct gpio_chip *gc, unsigned offset) @@ -317,7 +322,9 @@ static int mxs_gpio_probe(struct platform_device *pdev) } /* gpio-mxs can be a generic irq chip */ - mxs_gpio_init_gc(port, irq_base); + err = mxs_gpio_init_gc(port, irq_base); + if (err < 0) + goto out_irqdomain_remove; /* setup one handler for each entry */ irq_set_chained_handler_and_data(port->irq, mxs_gpio_irq_handler, @@ -343,6 +350,8 @@ static int mxs_gpio_probe(struct platform_device *pdev) out_bgpio_remove: bgpio_remove(&port->bgc); +out_irqdomain_remove: + irq_domain_remove(port->domain); out_irqdesc_free: irq_free_descs(irq_base, 32); return err; |