[PATCH 7/7] backlight: atmel-pwm-bl: fix deferred probe from __init
From: Johan Hovold <hidden>
Date: 2013-09-23 14:27:55
Also in:
linux-mmc, lkml
Subsystem:
backlight class/subsystem, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds
Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.
Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if a gpio_request fails.
Cc: Richard Purdie <redacted>
Cc: Jingoo Han <redacted>
Cc: Jean-Christophe Plagniol-Villard <redacted>
Signed-off-by: Johan Hovold <redacted>
---
drivers/video/backlight/atmel-pwm-bl.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 0393d82..f7447f7 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c@@ -118,7 +118,7 @@ static const struct backlight_ops atmel_pwm_bl_ops = { .update_status = atmel_pwm_bl_set_intensity, }; -static int __init atmel_pwm_bl_probe(struct platform_device *pdev) +static int atmel_pwm_bl_probe(struct platform_device *pdev) { struct backlight_properties props; const struct atmel_pwm_bl_platform_data *pdata;
@@ -202,7 +202,7 @@ err_free_mem: return retval; } -static int __exit atmel_pwm_bl_remove(struct platform_device *pdev) +static int atmel_pwm_bl_remove(struct platform_device *pdev) { struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
@@ -220,10 +220,11 @@ static struct platform_driver atmel_pwm_bl_driver = { .name = "atmel-pwm-bl", }, /* REVISIT add suspend() and resume() */ - .remove = __exit_p(atmel_pwm_bl_remove), + .probe = atmel_pwm_bl_probe, + .remove = atmel_pwm_bl_remove, }; -module_platform_driver_probe(atmel_pwm_bl_driver, atmel_pwm_bl_probe); +module_platform_driver(atmel_pwm_bl_driver); MODULE_AUTHOR("Hans-Christian egtvedt <hans-christian.egtvedt@atmel.com>"); MODULE_DESCRIPTION("Atmel PWM backlight driver");
--
1.8.3.2