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linux/drivers/pwm
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Uwe Kleine-König 6f4f778f27 pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add() 
[ Upstream commit 0401f24cd238ae200a23a13925f98de3d2c883b8 ]

When a driver calls pwmchip_add() it has to be prepared to immediately
get its callbacks called. So move allocation of driver data and hardware
initialization before the call to pwmchip_add().

This fixes a potential NULL pointer exception and a race condition on
register writes.

Fixes: 841e6f90bb78 ("pwm: NXP LPC18xx PWM/SCT driver")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:44 +02:00
..
core.c
pwm: Make pwmchip_remove() return void
2021-09-02 21:38:56 +02:00
Kconfig
pwm: keembay: Improve compile coverage by allowing to enable on !ARM64
2021-09-02 21:38:39 +02:00
Makefile
…
pwm-ab8500.c
pwm: ab8500: Simplify using devm_pwmchip_add()
2021-09-02 21:38:40 +02:00
pwm-atmel-hlcdc.c
pwm: atmel-hlcdc: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:49 +02:00
pwm-atmel-tcb.c
pwm: atmel-tcb: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:50 +02:00
pwm-atmel.c
pwm: atmel: Rework tracking updates pending in hardware
2021-09-02 21:35:09 +02:00
pwm-bcm2835.c
…
pwm-bcm-iproc.c
…
pwm-bcm-kona.c
pwm: bcm-kona: Simplify using devm_pwmchip_add()
2021-09-02 21:38:40 +02:00
pwm-berlin.c
pwm: berlin: Ensure configuring period and duty_cycle isn't wrongly skipped
2021-07-08 16:09:17 +02:00
pwm-brcmstb.c
pwm: brcmstb: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:50 +02:00
pwm-clps711x.c
pwm: clps711x: Simplify using devm_pwmchip_add()
2021-06-28 13:23:11 +02:00
pwm-crc.c
pwm: crc: Simplify using devm_pwmchip_add()
2021-06-28 13:25:04 +02:00
pwm-cros-ec.c
pwm: cros-ec: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:51 +02:00
pwm-dwc.c
…
pwm-ep93xx.c
pwm: ep93xx: Simplify using devm_pwmchip_add()
2021-09-02 21:38:41 +02:00
pwm-fsl-ftm.c
pwm: fsl-ftm: Simplify using devm_pwmchip_add()
2021-09-02 21:38:41 +02:00
pwm-hibvt.c
pwm: hibvt: Disable the clock only after the PWM was unregistered
2021-09-02 21:38:37 +02:00
pwm-img.c
pwm: img: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:51 +02:00
pwm-imx1.c
pwm: imx1: Simplify using devm_pwmchip_add()
2021-06-28 13:24:45 +02:00
pwm-imx27.c
pwm: imx27: Simplify using devm_pwmchip_add()
2021-09-02 21:38:42 +02:00
pwm-imx-tpm.c
pwm: imx-tpm: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:52 +02:00
pwm-intel-lgm.c
pwm: intel-lgm: Simplify using devm_pwmchip_add()
2021-09-02 21:38:42 +02:00
pwm-iqs620a.c
pwm: iqs620a: Simplify using devm_pwmchip_add()
2021-09-02 21:38:43 +02:00
pwm-jz4740.c
pwm: jz4740: Simplify using devm_pwmchip_add()
2021-09-02 21:38:43 +02:00
pwm-keembay.c
pwm: keembay: Simplify using devm_pwmchip_add()
2021-09-02 21:38:44 +02:00
pwm-lp3943.c
pwm: lp3943: Simplify using devm_pwmchip_add()
2021-09-02 21:38:44 +02:00
pwm-lpc18xx-sct.c
pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add()
2022-04-08 14:23:44 +02:00
pwm-lpc32xx.c
pwm: lpc32xx: Simplify using devm_pwmchip_add()
2021-09-02 21:38:44 +02:00
pwm-lpss-pci.c
pwm: lpss: Simplify using devm_pwmchip_add()
2021-06-28 13:18:25 +02:00
pwm-lpss-platform.c
pwm: lpss: Simplify using devm_pwmchip_add()
2021-06-28 13:18:25 +02:00
pwm-lpss.c
pwm: lpss: Simplify using devm_pwmchip_add()
2021-06-28 13:18:25 +02:00
pwm-lpss.h
pwm: lpss: Simplify using devm_pwmchip_add()
2021-06-28 13:18:25 +02:00
pwm-mediatek.c
pwm: mediatek: Simplify using devm_pwmchip_add()
2021-09-02 21:38:45 +02:00
pwm-meson.c
pwm: meson: Simplify using devm_pwmchip_add()
2021-06-28 13:22:07 +02:00
pwm-mtk-disp.c
pwm: mtk-disp: Implement atomic API .get_state()
2021-09-02 22:27:46 +02:00
pwm-mxs.c
pwm: mxs: Simplify using devm_pwmchip_add()
2021-09-02 21:38:45 +02:00
pwm-ntxec.c
pwm: ntxec: Simplify using devm_pwmchip_add()
2021-09-02 21:38:46 +02:00
pwm-omap-dmtimer.c
pwm: omap-dmtimer: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:52 +02:00
pwm-pca9685.c
pwm: pca9685: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:53 +02:00
pwm-pxa.c
pwm: pxa: Simplify using devm_pwmchip_add()
2021-09-02 21:38:46 +02:00
pwm-raspberrypi-poe.c
pwm: raspberrypi-poe: Simplify using devm_pwmchip_add()
2021-09-02 21:38:47 +02:00
pwm-rcar.c
pwm: rcar: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:53 +02:00
pwm-renesas-tpu.c
pwm: renesas-tpu: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:54 +02:00
pwm-rockchip.c
pwm: rockchip: Unprepare clocks only after the PWM was unregistered
2021-09-02 21:38:38 +02:00
pwm-samsung.c
pwm: samsung: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:54 +02:00
pwm-sifive.c
pwm: sifive: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:55 +02:00
pwm-sl28cpld.c
pwm: sl28cpld: Simplify using devm_pwmchip_add()
2021-09-02 21:38:47 +02:00
pwm-spear.c
pwm: spear: Ensure configuring period and duty_cycle isn't wrongly skipped
2021-07-08 16:08:38 +02:00
pwm-sprd.c
pwm: sprd: Ensure configuring period and duty_cycle isn't wrongly skipped
2021-07-08 16:08:08 +02:00
pwm-sti.c
…
pwm-stm32-lp.c
pwm: stm32-lp: Simplify using devm_pwmchip_add()
2021-09-02 21:38:47 +02:00
pwm-stm32.c
…
pwm-stmpe.c
…
pwm-sun4i.c
pwm: sun4i: Don't check the return code of pwmchip_remove()
2021-09-02 21:38:55 +02:00
pwm-tegra.c
pwm: tegra: Assert reset only after the PWM was unregistered
2021-06-30 19:12:20 +02:00
pwm-tiecap.c
pwm: tiecap: Simplify using devm_pwmchip_add()
2021-09-02 21:38:48 +02:00
pwm-tiehrpwm.c
pwm: tiehrpwm: Unprepare clock only after the PWM was unregistered
2021-09-02 21:38:38 +02:00
pwm-twl-led.c
pwm: twl-led: Simplify using devm_pwmchip_add()
2021-09-02 21:38:48 +02:00
pwm-twl.c
pwm: twl: Simplify using devm_pwmchip_add()
2021-09-02 21:38:49 +02:00
pwm-visconti.c
…
pwm-vt8500.c
pwm: vt8500: Only unprepare the clock after the pwmchip was removed
2021-06-30 19:12:20 +02:00
sysfs.c
…