diff options
| author | Michał Kępień <kernel@kempniu.pl> | 2017-01-09 14:14:16 +0100 |
|---|---|---|
| committer | Darren Hart <dvhart@linux.intel.com> | 2017-02-04 02:46:38 +0100 |
| commit | dcb50b351646c3549fc28b5857d1414ec6487615 (patch) | |
| tree | 8c2e31143d7bbba658416dc4ba97e1ee322407a3 /drivers/platform | |
| parent | 9893ae86066cf0a59a6beb3908b9cdac4c1347f3 (diff) | |
platform/x86: fujitsu-laptop: rework logolamp_set() to properly handle errors
Potential errors returned by some call_fext_func() calls inside
logolamp_set() are currently ignored. Rework logolamp_set() to properly
handle them. This causes one more call_fext_func() call to be made in
the LED_OFF case, though one could argue that this is logically the
right thing to do (even though the extra call is not needed to shut the
LED off).
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/fujitsu-laptop.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index b725a907a91f..34b8481fb0ed 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -271,15 +271,20 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2) static int logolamp_set(struct led_classdev *cdev, enum led_brightness brightness) { - if (brightness >= LED_FULL) { - call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON); - return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON); - } else if (brightness >= LED_HALF) { - call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON); - return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF); - } else { - return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF); - } + int poweron = FUNC_LED_ON, always = FUNC_LED_ON; + int ret; + + if (brightness < LED_HALF) + poweron = FUNC_LED_OFF; + + if (brightness < LED_FULL) + always = FUNC_LED_OFF; + + ret = call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, poweron); + if (ret < 0) + return ret; + + return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, always); } static int kblamps_set(struct led_classdev *cdev, |