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[media] staging: lirc: Introduce the use of managed interfaces 

This patch introduces the use of managed interfaces like
devm_request_mem_region and devm_request_irq and does away with the
calls to free the allocated memory in the probe and remove functions.
The remove function is no longer required and is removed completely.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Himangi Saraogi 2014-07-03 16:38:40 -03:00 committed by Mauro Carvalho Chehab
parent 280373533f
commit 56a65a1eb0
1 changed files with 7 additions and 30 deletions
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37
drivers/staging/media/lirc/lirc_serial.c
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@ -782,7 +782,7 @@ static int lirc_serial_probe(struct platform_device *dev)
{
int i, nlow, nhigh, result;
result = request_irq(irq, lirc_irq_handler,
result = devm_request_irq(&dev->dev, irq, lirc_irq_handler,
(share_irq ? IRQF_SHARED : 0),
LIRC_DRIVER_NAME, (void *)&hardware);
if (result < 0) {
@ -800,22 +800,22 @@ static int lirc_serial_probe(struct platform_device *dev)
* for the NSLU2 it's done in boot code.
*/
if (((iommap != 0)
&& (request_mem_region(iommap, 8 << ioshift,
LIRC_DRIVER_NAME) == NULL))
&& (devm_request_mem_region(&dev->dev, iommap, 8 << ioshift,
LIRC_DRIVER_NAME) == NULL))
|| ((iommap == 0)
&& (request_region(io, 8, LIRC_DRIVER_NAME) == NULL))) {
&& (devm_request_region(&dev->dev, io, 8,
LIRC_DRIVER_NAME) == NULL))) {
dev_err(&dev->dev, "port %04x already in use\n", io);
dev_warn(&dev->dev, "use 'setserial /dev/ttySX uart none'\n");
dev_warn(&dev->dev,
"or compile the serial port driver as module and\n");
dev_warn(&dev->dev, "make sure this module is loaded first\n");
result = -EBUSY;
goto exit_free_irq;
return -EBUSY;
}
result = hardware_init_port();
if (result < 0)
goto exit_release_region;
return result;
/* Initialize pulse/space widths */
init_timing_params(duty_cycle, freq);
@ -847,28 +847,6 @@ static int lirc_serial_probe(struct platform_device *dev)
dprintk("Interrupt %d, port %04x obtained\n", irq, io);
return 0;
exit_release_region:
if (iommap != 0)
release_mem_region(iommap, 8 << ioshift);
else
release_region(io, 8);
exit_free_irq:
free_irq(irq, (void *)&hardware);
return result;
}
static int lirc_serial_remove(struct platform_device *dev)
{
free_irq(irq, (void *)&hardware);
if (iommap != 0)
release_mem_region(iommap, 8 << ioshift);
else
release_region(io, 8);
return 0;
}
static int set_use_inc(void *data)
@ -1081,7 +1059,6 @@ static int lirc_serial_resume(struct platform_device *dev)
static struct platform_driver lirc_serial_driver = {
.probe = lirc_serial_probe,
.remove = lirc_serial_remove,
.suspend = lirc_serial_suspend,
.resume = lirc_serial_resume,
.driver = {