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linux/drivers/video/backlight
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Daniel Thompson 633786736e backlight: pwm_bl: Fix uninitialized variable 
Currently, if the DT does not define num-interpolated-steps then
num_steps is undefined and the interpolation code will deploy randomly.
Fix with a simple initialize to zero.

Fixes: 573fe6d1c2 ("backlight: pwm_bl: Linear interpolation between brightness-levels")
Reported-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 		2018-07-25 09:09:59 +01:00
..
88pm860x_bl.c backlight: 88pm860x_bl: Add missing of_node_put 2015-10-15 12:06:21 +01:00
Kconfig backlight: otm3225a: Add support for ORISE OTM3225A LCD SoC 2018-04-30 10:50:44 +01:00
Makefile backlight: otm3225a: Add support for ORISE OTM3225A LCD SoC 2018-04-30 10:50:44 +01:00
aat2870_bl.c backlight: Remove .owner field for drivers using module_platform_driver 2014-08-28 14:09:48 +01:00
adp5520_bl.c backlight: adp5520: Fix error handling in adp5520_bl_probe() 2017-01-04 11:37:31 +00:00
adp8860_bl.c backlight: adp8860: Mark expected switch fall-through 2018-07-13 08:35:15 +01:00
adp8870_bl.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
ams369fg06.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
apple_bl.c backlight: apple_bl: Deprecate pci_get_bus_and_slot() 2017-12-20 13:47:05 +00:00
arcxcnn_bl.c backlight: Add support for Arctic Sand LED backlight driver chips 2017-04-25 09:22:23 +01:00
as3711_bl.c backlight: as3711_bl: Fix Device Tree node leaks 2018-06-11 13:40:45 +01:00
backlight.c video: backlight: Add devres versions of of_find_backlight 2018-01-29 10:34:53 -05:00
bd6107.c backlight: Remove trivial get_brightness implementations 2014-06-23 13:24:22 +01:00
corgi_lcd.c backlight: tdo24m: Fix the SPI CS between transfers 2018-01-08 09:21:57 +00:00
cr_bllcd.c backlight: cr_bllcd: Add blank line after declarations 2014-08-29 08:24:51 +01:00
da903x_bl.c backlight: Remove .owner field for drivers using module_platform_driver 2014-08-28 14:09:48 +01:00
da9052_bl.c backlight: da9052: Fix module autoload 2017-01-04 11:37:58 +00:00
ep93xx_bl.c backlight: Remove .owner field for drivers using module_platform_driver 2014-08-28 14:09:48 +01:00
generic_bl.c backlight: generic-bl: Remove DRIVER1 state 2018-04-30 13:25:14 +01:00
gpio_backlight.c backlight: gpio_backlight: Delete pdata inversion 2017-08-07 17:11:28 +01:00
hp680_bl.c backlight: hp680_bl: use devm_backlight_device_register() 2014-01-23 16:36:56 -08:00
hx8357.c backlight: hx8357: remove unnecessary OOM messages 2014-04-03 16:21:10 -07:00
ili922x.c backlight: ili922x: Remove redundant variable len 2017-11-08 10:43:49 +00:00
ili9320.c backlight: ili9320: remove unnecessary OOM messages 2014-04-03 16:21:10 -07:00
ili9320.h
…
ipaq_micro_bl.c backlight: ipaq_micro: Fix sparse non static symbol warning 2014-07-31 10:31:22 +01:00
jornada720_bl.c backlight: jornada720: Remove 'else' after a return 2014-08-29 08:26:32 +01:00
jornada720_lcd.c backlight: jornada720: Remove 'else' after a return 2014-08-29 08:26:51 +01:00
kb3886_bl.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
l4f00242t03.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
lcd.c backlight: lcd: Fix race condition during register 2017-01-04 11:37:31 +00:00
ld9040.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
ld9040_gamma.h
…
lm3533_bl.c backlight: Remove .owner field for drivers using module_platform_driver 2014-08-28 14:09:48 +01:00
lm3630a_bl.c backlight: lm3630a: Bump REG_MAX value to 0x50 instead of 0x1F 2017-07-17 13:27:06 +01:00
lm3639_bl.c backlight: lm3639: Remove unnecessary return statements 2014-08-29 08:25:23 +01:00
lms283gf05.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
lms501kf03.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
locomolcd.c
…
lp855x_bl.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
lp8788_bl.c backlight: lp8788: Explicitly apply PWM config extracted from pwm_args 2016-05-17 14:45:04 +02:00
ltv350qv.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
ltv350qv.h
…
lv5207lp.c backlight: Remove trivial get_brightness implementations 2014-06-23 13:24:22 +01:00
max8925_bl.c backlight: max8925_bl: Fix Device Tree node lookup 2018-06-11 13:40:32 +01:00
omap1_bl.c backlight: omap1: add blank line after declarations 2014-08-29 08:27:53 +01:00
ot200_bl.c backlight: Remove .owner field for drivers using module_platform_driver 2014-08-28 14:09:48 +01:00
otm3225a.c backlight: otm3225a: Add support for ORISE OTM3225A LCD SoC 2018-04-30 10:50:44 +01:00
pandora_bl.c backlight: pandora: Stop using BL_CORE_DRIVER1 2018-04-30 13:25:14 +01:00
pcf50633-backlight.c backlight: pcf50633: Add blank line after declarations 2014-08-29 08:25:53 +01:00
platform_lcd.c backlight: Remove .owner field for drivers using module_platform_driver 2014-08-28 14:09:48 +01:00
pm8941-wled.c backlight: pm8941-wled: Add default-brightness property 2015-10-30 18:47:51 +00:00
pwm_bl.c backlight: pwm_bl: Fix uninitialized variable 2018-07-25 09:09:59 +01:00
rave-sp-backlight.c backlight: Add RAVE SP backlight driver 2018-04-30 10:50:43 +01:00
s6e63m0.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
s6e63m0_gamma.h
…
sky81452-backlight.c backlight: sky81452: Remove unneeded use of IS_ERR_VALUE() macro 2015-08-25 08:43:21 +01:00
tdo24m.c backlight: tdo24m: Fix the SPI CS between transfers 2018-01-08 09:21:57 +00:00
tosa_bl.c backlight-tosa: Delete unnecessary assignment for the field "owner" 2016-10-06 09:27:25 +01:00
tosa_lcd.c backlight: tdo24m: Fix the SPI CS between transfers 2018-01-08 09:21:57 +00:00
tps65217_bl.c backlight: tps65217_bl: Fix Device Tree node lookup 2018-06-11 13:40:39 +01:00
vgg2432a4.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
wm831x_bl.c backlight: wm831x_bl: Add blank line after declarations 2014-08-29 08:26:21 +01:00