On Thu, Mar 14, 2013 at 3:06 PM, Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > On Thu, Mar 14, 2013 at 01:58:05PM +0000, Arnd Bergmann wrote: >> On Thursday 14 March 2013, Fabio Porcedda wrote: >> > This patch converts the drivers to use the >> > module_platform_driver_probe() macro which makes the code smaller and >> > a bit simpler. >> > >> > Signed-off-by: Fabio Porcedda <fabio.porcedda@xxxxxxxxx> >> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> >> > Cc: Arnd Bergmann <arnd@xxxxxxxx> >> > --- >> > drivers/misc/atmel_pwm.c | 12 +----------- >> > drivers/misc/ep93xx_pwm.c | 13 +------------ >> > 2 files changed, 2 insertions(+), 23 deletions(-) >> >> The patch itself seems fine, but there are two issues around it: >> >> * The PWM drivers should really get moved to drivers/pwm and converted to the new >> PWM subsystem. I don't know if Hartley or Hans-Christian have plans to do >> that already. >> >> * Regarding the use of module_platform_driver_probe, I'm a little worried about >> the interactions with deferred probing. I don't think there are any regressions, >> but we should probably make people aware that one cannot return -EPROBE_DEFER >> from a platform_driver_probe function. The use of module_platform_driver_probe() doesn't change anything about that, it's exactly the same thing as using "return platform_driver_probe()". I'm right or I'm missing something? Maybe are you just speaking about the misuse of "platform_driver_probe"? Best regards Fabio Porcedda > > I'm worried about this aswell. I think platform_driver_probe shouldn't > be used anymore. Even if a driver does not explicitly make use of > -EPROBE_DEFER, it leaks in very quickly if a driver for example uses a > regulator and just returns the error value from regulator_get. > Sascha > > -- > Pengutronix e.K. | | > Industrial Linux Solutions | http://www.pengutronix.de/ | > Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
