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Input: pcspkr - fix code style and error value in pcspkr_event

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This patch fixes the following issues in pcspkr:

* Return -EINVAL when input arguments are not valid in pcspkr_event
  function instead of -1.
* Replace <asm/io.h> with <linux/io.h>
* Fix indentation of case blocks in switch statement
* Reduce length of line 28 to less than 80 characters

The style issues were discovered by checkpatch.pl script.

Signed-off-by: Munir Contractor <munircontractor@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Munir Contractor 2017-08-14 22:02:08 -07:00 committed by Dmitry Torokhov
parent 2e53d52c01
commit 9e04b79ce4
1 changed files with 11 additions and 6 deletions
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17
drivers/input/misc/pcspkr.c
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@ -18,25 +18,30 @@
#include <linux/input.h> #include <linux/input.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/timex.h> #include <linux/timex.h>
#include <asm/io.h> #include <linux/io.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("PC Speaker beeper driver"); MODULE_DESCRIPTION("PC Speaker beeper driver");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pcspkr"); MODULE_ALIAS("platform:pcspkr");
static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) static int pcspkr_event(struct input_dev *dev, unsigned int type,
unsigned int code, int value)
{ {
unsigned int count = 0; unsigned int count = 0;
unsigned long flags; unsigned long flags;
if (type != EV_SND) if (type != EV_SND)
return -1; return -EINVAL;
switch (code) { switch (code) {
case SND_BELL: if (value) value = 1000; case SND_BELL:
case SND_TONE: break; if (value)
default: return -1; value = 1000;
case SND_TONE:
break;
default:
return -EINVAL;
} }
if (value > 20 && value < 32767) if (value > 20 && value < 32767)