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linux-sg2042/drivers/leds
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Thadeu Lima de Souza Cascardo 48cccd26f3 leds: fix multiple requests and releases of IRQ for GPIO LED Trigger 
When setting the same GPIO number, multiple IRQ shared requests will be
done without freing the previous request.  It will also try to free a
failed request or an already freed IRQ if 0 was written to the gpio file.

All these oops and leaks were fixed with the following solution: keep the
previous allocated GPIO (if any) still allocated in case the new request
fails.  The alternative solution would desallocate the previous allocated
GPIO and set gpio as 0.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Samuel R. C. Vale <srcvale@holoscopio.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2009-08-26 20:06:53 -07:00
..
Kconfig leds: LED driver for National Semiconductor LP3944 Funlight Chip 2009-06-23 20:21:38 +01:00
Makefile leds: LED driver for National Semiconductor LP3944 Funlight Chip 2009-06-23 20:21:38 +01:00
led-class.c leds: allow led-drivers to use a variable range of brightness values 2009-04-06 16:06:25 +01:00
led-core.c leds: Cleanup various whitespace and code style issues 2008-04-24 23:37:42 +01:00
led-triggers.c leds: Prevent multiple LED triggers with the same name 2009-04-06 16:06:26 +01:00
leds-alix2.c leds: alix-leds2 fixed for Award BIOS 2009-06-23 20:20:34 +01:00
leds-ams-delta.c leds: Add suspend/resume to the core class 2009-01-08 17:55:03 +00:00
leds-atmel-pwm.c leds: fix unsigned value overflow in atmel pwm driver 2008-07-23 09:49:56 +01:00
leds-bd2802.c leds: add the sysfs interface into the leds-bd2802 driver for changing wave pattern and led current. 2009-06-23 20:19:10 +01:00
leds-clevo-mail.c leds: Add suspend/resume to the core class 2009-01-08 17:55:03 +00:00
leds-cobalt-qube.c leds: Cleanup various whitespace and code style issues 2008-04-24 23:37:42 +01:00
leds-cobalt-raq.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
leds-da903x.c leds: da903x: (da9030 only) led brightness reversed. 2008-10-30 22:14:10 +08:00
leds-dac124s085.c leds: Add dac124s085 driver 2009-04-06 16:06:25 +01:00
leds-fsg.c leds: Add suspend/resume to the core class 2009-01-08 17:55:03 +00:00
leds-gpio.c leds: Add options to have GPIO LEDs start on or keep their state 2009-06-23 20:21:39 +01:00
leds-h1940.c [ARM] S3C24XX: GPIO: Move gpio functions out of <mach/hardware.h> 2009-05-18 16:25:40 +01:00
leds-hp6xx.c leds: Add suspend/resume to the core class 2009-01-08 17:55:03 +00:00
leds-locomo.c [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
leds-lp3944.c leds: LED driver for National Semiconductor LP3944 Funlight Chip 2009-06-23 20:21:38 +01:00
leds-net48xx.c leds: Add suspend/resume to the core class 2009-01-08 17:55:03 +00:00
leds-pca955x.c leds: leds-pca955x - Mark pca955x_led_set() static 2008-10-20 22:57:56 +01:00
leds-pca9532.c leds: pca9532 - Indent using tabs, not spaces. 2009-06-23 20:21:20 +01:00
leds-pwm.c leds: simple driver for pwm driven LEDs 2009-04-06 16:06:26 +01:00
leds-rb532.c leds: Add rb532 LED driver for the User LED 2009-04-06 16:06:26 +01:00
leds-s3c24xx.c [ARM] S3C24XX: GPIO: Move gpio functions out of <mach/hardware.h> 2009-05-18 16:25:40 +01:00
leds-sunfire.c leds: Add driver for Sunfire UltraSPARC server LEDs. 2008-08-31 20:26:48 -07:00
leds-wm8350.c leds: Add suspend/resume to the core class 2009-01-08 17:55:03 +00:00
leds-wrap.c leds: Add suspend/resume to the core class 2009-01-08 17:55:03 +00:00
leds.h leds: allow led-drivers to use a variable range of brightness values 2009-04-06 16:06:25 +01:00
ledtrig-backlight.c leds: Add backlight LED trigger 2008-10-20 22:34:12 +01:00
ledtrig-default-on.c leds: allow led-drivers to use a variable range of brightness values 2009-04-06 16:06:25 +01:00
ledtrig-gpio.c leds: fix multiple requests and releases of IRQ for GPIO LED Trigger 2009-08-26 20:06:53 -07:00
ledtrig-heartbeat.c leds: allow led-drivers to use a variable range of brightness values 2009-04-06 16:06:25 +01:00
ledtrig-ide-disk.c leds: allow led-drivers to use a variable range of brightness values 2009-04-06 16:06:25 +01:00
ledtrig-timer.c leds: allow led-drivers to use a variable range of brightness values 2009-04-06 16:06:25 +01:00