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genirq/devres: Use dev_name(dev) as default for devname 

Allow the devname parameter to be NULL and use dev_name(dev) in this case.
This should be an appropriate default for most use cases.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: http://lkml.kernel.org/r/05c63d67-30b4-7026-02d5-ce7fb7bc185f@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
zero-colors
Heiner Kallweit 2017-02-12 16:31:44 +01:00 committed by Thomas Gleixner
parent f435da416b
commit 899b5fbf9d
1 changed files with 8 additions and 2 deletions
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10
kernel/irq/devres.c
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@ -34,7 +34,7 @@ static int devm_irq_match(struct device *dev, void *res, void *data)
* @thread_fn: function to be called in a threaded interrupt context. NULL
* for devices which handle everything in @handler
* @irqflags: Interrupt type flags
* @devname: An ascii name for the claiming device
* @devname: An ascii name for the claiming device, dev_name(dev) if NULL
* @dev_id: A cookie passed back to the handler function
*
* Except for the extra @dev argument, this function takes the
@ -58,6 +58,9 @@ int devm_request_threaded_irq(struct device *dev, unsigned int irq,
if (!dr)
return -ENOMEM;
if (!devname)
devname = dev_name(dev);
rc = request_threaded_irq(irq, handler, thread_fn, irqflags, devname,
dev_id);
if (rc) {
@ -81,7 +84,7 @@ EXPORT_SYMBOL(devm_request_threaded_irq);
* @thread_fn: function to be called in a threaded interrupt context. NULL
* for devices which handle everything in @handler
* @irqflags: Interrupt type flags
* @devname: An ascii name for the claiming device
* @devname: An ascii name for the claiming device, dev_name(dev) if NULL
* @dev_id: A cookie passed back to the handler function
*
* Except for the extra @dev argument, this function takes the
@ -104,6 +107,9 @@ int devm_request_any_context_irq(struct device *dev, unsigned int irq,
if (!dr)
return -ENOMEM;
if (!devname)
devname = dev_name(dev);
rc = request_any_context_irq(irq, handler, irqflags, devname, dev_id);
if (rc < 0) {
devres_free(dr);