diff options
| author | Bartosz Golaszewski <brgl@bgdev.pl> | 2018-03-04 13:10:18 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-03-09 11:44:03 +0100 |
| commit | f09777fa891327ee0dd892e83619f156bf1c37e6 (patch) | |
| tree | 24ce54eedf5577b0880b76d304e65c0493b52ab4 /kernel/irq/irq_sim.c | |
| parent | genirq/irq_sim: Check the return value of irq_sim_init() for error codes (diff) | |
| download | linux-f09777fa891327ee0dd892e83619f156bf1c37e6.tar.xz linux-f09777fa891327ee0dd892e83619f156bf1c37e6.zip | |
genirq/irq_sim: Return the base of the irq range from irq_sim_init()
Returning the base of the allocated interrupt range from irq_sim_init() and
devm_irq_sim_init() allows users to handle the logic of associating irq
numbers with any other driver-specific resources without having to use
irq_sim_irqnum().
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/20180304121018.640-4-brgl@bgdev.pl
Diffstat (limited to 'kernel/irq/irq_sim.c')
| -rw-r--r-- | kernel/irq/irq_sim.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/irq/irq_sim.c b/kernel/irq/irq_sim.c index 05f0d7c1698a..85690859a2a8 100644 --- a/kernel/irq/irq_sim.c +++ b/kernel/irq/irq_sim.c @@ -50,7 +50,8 @@ static void irq_sim_handle_irq(struct irq_work *work) * @sim: The interrupt simulator object to initialize. * @num_irqs: Number of interrupts to allocate * - * Returns 0 on success and a negative error number on failure. + * On success: return the base of the allocated interrupt range. + * On failure: a negative errno. */ int irq_sim_init(struct irq_sim *sim, unsigned int num_irqs) { @@ -79,7 +80,7 @@ int irq_sim_init(struct irq_sim *sim, unsigned int num_irqs) init_irq_work(&sim->work_ctx.work, irq_sim_handle_irq); sim->irq_count = num_irqs; - return 0; + return sim->irq_base; } EXPORT_SYMBOL_GPL(irq_sim_init); @@ -111,7 +112,8 @@ static void devm_irq_sim_release(struct device *dev, void *res) * @sim: The interrupt simulator object to initialize. * @num_irqs: Number of interrupts to allocate * - * Returns 0 on success and a negative error number on failure. + * On success: return the base of the allocated interrupt range. + * On failure: a negative errno. */ int devm_irq_sim_init(struct device *dev, struct irq_sim *sim, unsigned int num_irqs) @@ -132,7 +134,7 @@ int devm_irq_sim_init(struct device *dev, struct irq_sim *sim, dr->sim = sim; devres_add(dev, dr); - return 0; + return rv; } EXPORT_SYMBOL_GPL(devm_irq_sim_init); |